SSC CHSL 2020 Official Paper 13 (Held On: 19 April 2021 Shift 1) (Previous Year Paper)

The correct answer is 'Let the New Year be celebrated with amazing offers.'

Key Points

• In Active Voice, a sentence emphasizes the subject, performing an action.
• In Passive Voice, a sentence emphasizes the action or the object of the sentence.
• The given sentence is an imperative sentence. A sentence that expresses a request, advice, or order is called an imperative sentence (here, an order).
• An imperative sentence in the passive voice has the following form: Let + object + be + past participle.
• The three rules for converting imperative sentences from active voice into passive voice:
• The imperative sentence in the passive voice always starts with the word 'Let'.
• The word 'be' is used as an auxiliary in the passive voice.
• In the imperative sentences, the first form of the verb in the active voice (here, celebrate) is changed into the third form of the verb in the passive voice (here, celebrated).

Hence, the correct answer is option 2.

Hinglish

• Active Voice में , एक वाक्य विषय पर जोर देता है, एक क्रिया करता है।
• Passive Voice में , एक वाक्य वाक्य की क्रिया या वस्तु पर जोर देता है।
• दिया गया वाक्य imperative sentence है। एक वाक्य जो अनुरोध, सलाह या आदेश व्यक्त करता है उसे imperative sentence (यहां, एक आदेश) कहा जाता है।
• Passive voice में एक imperative sentence का निम्न रूप है: Let + object + be + past participle.
• Imperative sentences को active voice से passive voice में बदलने के तीन नियम:
• Passive voice में imperative sentence हमेशा 'Let' शब्द से शुरू होता है।
• Passive voice में 'be' शब्द का प्रयोग सहायक के रूप में किया जाता है।
• Imperative sentences में, active voice में क्रिया का पहला रूप (यहां, celebrate) passive voice में क्रिया के तीसरे रूप में बदल जाता है (यहां, celebrated)।

अतः सही उत्तर विकल्प 2 है।

The correct answer is He requested his sister to help him with his homework.

Key Points

• The given sentence is a direct speech.
• The basic rules for changing or converting direct speech into indirect speech:​
• The commas, inverted commas are removed.
• 'Please' indicates a request and therefore, the reporting verb 'requested' should be used in place of 'please' and it must be followed by an object.
• Requests are usually reported using a to-infinitive (here, to help).
• The first-person pronoun 'me' becomes the third-person pronoun 'him' and the first-person pronoun 'my' becomes the third-person pronoun 'his'.

Hence, the correct answer is option 4.

Hinglish

• दिया गया वाक्य direct speech है।
• Direct speech को indirect speech में बदलने के लिए बुनियादी नियम:
• Commas, inverted commas और exclamation mark हटा दिए जाते हैं।
• 'Please' एक अनुरोध को इंगित करता है और इसलिए, 'Please' के स्थान पर रिपोर्टिंग क्रिया 'requested' का उपयोग किया जाना चाहिए।
• Requests को आमतौर पर to-infinitive (यहां, to help) का उपयोग करके रिपोर्ट किया जाता है।
• First-person pronoun 'me', third-person pronoun 'him' बन जाता है और first-person pronoun 'my', third-person pronoun 'his' बन जाता है।

अत: सही उत्तर विकल्प 4 है।

The correct answer is 'To have just enough money to live.'

Key Points

• Given Idiom: To make both ends meet means to have adequate money to survive or to live. (जीवित रहने या जीने के लिए पर्याप्त धन होना)
• Example: We have to spend less to make both ends meet.
• From the given options, the third option is the most appropriate meaning of the given idiom.

Hence, the correct answer is option 3.

Mistake Points

• We may think from the phrase "To make both ends meet" that it is all about trying to bring two parties together.

Additional Information

• One of the earliest examples of the idiom can be found in Thomas Fuller’s The History of the Worthies of England (1661). It is also said that it is translated from the French ''joindre les deux bouts de l’an'' which means to make both ends of the year meet. It implies that you have a stipend from the year and will need to live in such a manner that you do not use it all before the end of the year.

The correct answer is 'Saspence.'

Key Points

• Let us explore the options:-
• 'Saspence': There is no such word in English or we can say that there is some spelling mistake in this word.
• ​The correct spelling is 'Suspense' and it means a state or feeling of excited or anxious uncertainty about what may happen. (चिंता, भ्रांति)
• 'Secrecy' means being secret or keeping something secret. (किसी चीज़ का गोपनीय होना या उसे गोपनीय रखना)
• 'Suppress' means to stop something from being seen or known. (किसी बात को प्रकट न होने देना, छिपा लेना)
• 'Suspicion' means a feeling or belief that something is wrong or that somebody has done something wrong. (संदेह, शक)

Hence, the correct answer is option 1.

Additional Information

• Example of 'Suspense' in a sentence:
• The movie is a suspense thriller.

The correct answer is 'BDCA.'

Key Points

• The sentence 'B' is independent of any other sentence as it is giving general information about "Tony Robins". Hence, 'B' is the first part.
• Sentence D will come after B as it is giving information about the situation of the family of Tony Robins in the earlier days.
• Sentence C will come after D as it is talking about the transformation that happened in the life of Tony Robins becoming wealthy from being poor.
• The sentence 'A' is the concluding part because it explains after becoming rich how Tony Robins helps millions of people to improve their lives.

Paragraph after rearranging the sentences: Born in downtown Los Angeles in 1960, Tony Robins came from very humble beginnings. His family had been fed by others when they did not have enough money for food. Now he travels by private jet and owns properties in many parts of the world. But he has reached out to millions of people the world over and helped to improve their lives.

Hint

• Important Rules to Solve the Para Jumbles:
• Read the sentences attentively and try to comprehend the idea or theme of the sentence and eliminate the irrelevant options.
• Try to identify the opening (independent sentence) and closing sentences (concluding sentence).
• Try to identify the mandatory pairs. Two sentences can be connected through various connectors and other determinants.

Hinglish

• वाक्य 'B' किसी अन्य वाक्य से स्वतंत्र है क्योंकि यह "टोनी रॉबिन्स" के बारे में सामान्य जानकारी दे रहा है। अतः 'B' पहला भाग है।
• वाक्य D, B के बाद आएगा क्योंकि यह टोनी रॉबिन्स के परिवार की पहले के दिनों की स्थिति के बारे में जानकारी दे रहा है।
• वाक्य C, D के बाद आएगा क्योंकि यह टोनी रॉबिन्स के गरीब होने से अमीर बनने के जीवन में हुए परिवर्तन के बारे में बात कर रहा है।
• वाक्य 'A' अंतिम भाग है क्योंकि यह बताता है कि अमीर बनने के बाद कैसे टोनी रॉबिन्स लाखों लोगों को उनके जीवन को बेहतर बनाने में मदद करता है।

The correct answer is 'the most feared forms' i.e. this part of the sentence has an error.

Key Points

• In the given sentence, the singular form of the noun 'form' is incorrect.
• The phrase ''one of'' in the given sentence is a singular term and generally used to talk about a noun or a pronoun.
• The noun or a pronoun used after the phrase ''one of'' is always in the plural form (as we are talking of one person/place/thing out of many).
• Therefore, the plural form of the noun 'forms' should be used in place of the singular form 'form'.

Hence, the correct answer is option 1.

Correct sentence: Public speaking is one of the most feared forms of communication.

Hinglish

• दिए गए वाक्य में noun 'form' का एकवचन रूप गलत है।
• दिए गए वाक्य में वाक्यांश ''one of'' एकवचन शब्द है और आम तौर पर संज्ञा या सर्वनाम के बारे में बात करने के लिए प्रयोग किया जाता है।
• "One of" वाक्यांश के बाद प्रयुक्त संज्ञा या सर्वनाम हमेशा बहुवचन रूप में होता है (जैसा कि हम कई में से एक व्यक्ति / स्थान / वस्तु की बात कर रहे हैं)।
• इसलिए, संज्ञा के बहुवचन रूप 'forms' का प्रयोग एकवचन रूप 'form' के स्थान पर करना चाहिए।

अत: सही उत्तर विकल्प 1 है ।

सही वाक्य: Public speaking is one of the most feared forms of communication.

The correct answer is 'Retreat.'

Key Points

• Let's see the meanings of the given words-
• Resort - a place where a lot of people go on holiday. (लोगों की अवकाश-कालीन आनंद-स्‍थली, सैरगाह)
• Retreat - to withdraw from a forward position in battle. (युद्ध में आगे की स्थिति से पीछे हटना)
• Restore - to put somebody or something back into his/her/its former condition or position. (व्‍यक्ति या वस्‍तु को उसकी पूर्व दशा या स्थिति में लाना)
• Relocate - to move to a new place and establish one's home or business there. (किसी नए स्थान पर जाना और वहां अपना घर या व्यवसाय स्थापित करना)

​

Hence, the correct answer is option 2.

The correct answer is 'diverse.'

Key Points

• The given sentence is talking about giving admission to students with different backgrounds.
• The use of the word 'backgrounds' in the sentence indicates a person's education, experience, and social circumstances.
• Therefore, the most appropriate word to be filled in the blank is 'diverse'.
• The word 'diverse' means showing a great deal of variety. 
• Example: The restaurant has a diverse menu that includes entrees from all over the world.

Hence, the correct answer is option 1.

Complete Sentence: We admit students with diverse academic backgrounds like life sciences, physical sciences, and business and commerce.

Additional Information

• Let us explore  the other options:
• 'Simple' means natural and not complicated. (स्‍वाभाविक; सहज)
• 'Same' means not different, not another or other. (अलग नहीं, कोई और या अन्‍य नहीं)
• 'Similar' means like somebody or something but not exactly the same. (किसी के समान; किसी के जैसा या सदृश)

Hinglish

• दिया गया वाक्य विभिन्न पृष्ठभूमि वाले छात्रों को प्रवेश देने की बात कर रहा है।
• वाक्य में 'backgrounds' शब्द का प्रयोग व्यक्ति की शिक्षा, अनुभव और सामाजिक परिस्थितियों को इंगित करता है।
• इसलिए, रिक्त स्थान में भरने के लिए सबसे उपयुक्त शब्द 'diverse' है।
• 'Diverse' शब्द का अर्थ है विविध, विभिन्न।
• उदाहरण: The restaurant has a diverse menu that includes entrees from all over the world.

अत: सही उत्तर विकल्प 1 है।

पूर्ण वाक्य: We admit students with diverse academic backgrounds like life sciences, physical sciences, and business and commerce.

The correct answer is 'unless you tell me.'

Key Points

• In the underlined segment, the use of the preposition 'if' is incorrect.
• An 'if' phrase expresses that one action or situation must happen first before the other one will/can happen.
• The action in the clause following 'if' expresses either a condition for a singular outcome to occur; or a recurring situation 'whenever' with a predictable outcome.
• Example: You will have a tough turkey if you overcook it.
• The given sentence is telling the narrator cannot help someone till he/she reveals the problem.
• Therefore, the preposition 'unless' should be used in place of the preposition 'if'.
• 'Unless' expresses ''except if'' or ''if not''.
• We cannot have a negative sentence after unless because that would make the sentence a double negative and senseless.
• For Example:-
• Unless you don’t study, you will fail. (wrong sentence)
• Unless you study you will fail. (correct sentence)
• An 'unless' phrase expresses an action or situation will happen if the other one does not happen first or action or situation won't happen if the other one happens first.
• Example: You will have a tough chicken unless you overcook it.

​

Hence, the correct answer is option 3.

Correct Sentence: I cannot help you unless you tell me your problem.

Hinglish

• रेखांकित खंड में preposition 'if' का प्रयोग गलत है।
• एक 'if' phrase व्यक्त करता है कि एक क्रिया या स्थिति दूसरे के घटित होने से पहले होनी चाहिए।
• 'If' के बाद के clause में कार्रवाई एक विलक्षण परिणाम के होने की स्थिति को व्यक्त करती है; या एक आवर्ती स्थिति 'जब भी' एक पूर्वानुमेय परिणाम के साथ।
• उदाहरण: You will have a tough turkey if you overcook it.
• दिया गया वाक्य बता रहा है कि कथाकार किसी की तब तक मदद नहीं कर सकता जब तक वह समस्या का खुलासा नहीं करता।
• इसलिए, preposition 'unless', preposition 'if' के स्थान पर प्रयोग किया जाना चाहिए।
• 'Unless', ''यदि... नहीं''; ''तब तक नहीं जब तक'' को व्यक्त करता है।.
• हम 'unless' के बाद एक नकारात्मक वाक्य का उपयोग नहीं कर सकते, क्योंकि यह वाक्य को दोहरा नकारात्मक और अर्थहीन बना देगा।
• उदाहरण के लिए:-
• Unless you don’t study, you will fail. (गलत वाक्य)
• Unless you study you will fail. (सही वाक्य)
• एक 'unless' phrase व्यक्त करता है कि एक क्रिया या स्थिति तब होगी जब दूसरा पहले नहीं होगा या कोई कार्रवाई या स्थिति नहीं होगी यदि दूसरा पहले होता है।
• उदाहरण: You will have a tough chicken unless you overcook it.

अत: सही उत्तर विकल्प 3 है।

सही वाक्य: I cannot help you unless you tell me your problem.

The correct answer is 'Decent.'

Key Points

• The given word 'Malicious' means characterized by malice; intending or intended to do harm. (विद्वेषी, दुर्भावनाशील)
• Example: Sam is not malicious and has no political leanings.
• ​Let's see the meaning of other given options:-
• 'Biased' means to influence somebody or something, especially unfairly; to give an advantage to one group, etc. (अन��चित रूप से किसी को प्रभावित करना, पक्षपात करना, तरफ़दारी करना; पक्षपात के लिए प्रेरित करना)
• Example: University funding was tremendously biased towards scientists.
• 'Perverted' means to change a system, process, etc. in a bad way. (किसी प्रणाली, प्रक्रिया आदि को बदल कर विकृत या भ्रष्‍ट कर देना)
• Example: He was perverted by his evil companions.
• 'Culpable' means responsible for something bad that has happened. (ग़लती के लिए ज़िम्‍मेदार; दोषी)
• Example: The judge found the man culpable.
• 'Decent' means honest and fair; treating people with respect. (ईमानदार और उचित; सम्‍मानपूर्ण)
• Example: He is an educated, amiable and decent man.

Hence, the correct answer is option 4.

Additional Information

• The antonyms of the word 'Malicious' are "decent, nice, pleasant".
• The synonyms of the word 'Malicious' are "malign, bad, hateful".

The correct answer is 'Acheivmant.'

Key Points

• Let us explore the options:-
• 'Adamant' means very sure; refusing to change your mind. (अपने मत पर अटल, दृढ़; अड़ियल)
• 'Acheivmant': There is no such word in English or we can say that there is some spelling mistake in this word.
• ​The correct spelling is 'Achievement' and it means something that you have done successfully, especially through hard work or skill. (सफलतापूर्वक संपादित कार्य, विशेषतः परिश्रम और कौशल द्वारा प्राप्‍त उपलब्ध)
• 'Relevant' means important and useful. (महत्वपूर्ण और उपयोगी)
• 'Eligibility' means the quality of having the necessary qualifications or requirements. (योग्‍यता, वांछनीयता)

Hence, the correct answer is option 2.

Additional Information

• Example of 'Achievement' in a sentence:
• My greatest achievement is my family.

The correct answer is 'attached.'

Key Points

• The given sentence is talking about answering a list of questions.
• The word 'questionnaire' in the sentence is used to collect information about a particular subject.
• Therefore, the most appropriate word to be filled in the blank is 'attached'.
• The word 'attached' means joined, fastened, or connected to something. 
• Example: Please fill out the attached blank.

Hence, the correct answer is option 1.

Complete Sentence: Please complete the short questionnaire attached and return it to us.

Additional Information

• Let us explore  the other options:
• 'Separated' means to stop being together; to cause people or things to stop being together. (अलग हो जाना; व्‍यक्तियों या वस्‍तुओं का अलग कर देना)
• 'Concluded' means to end or to bring something to an end. (समाप्‍त करना या होना)
• 'Excluded' means to leave out; not include. (छोड़ देना; शामिल न करना)

Hinglish

• दिया गया वाक्य प्रश्नों की एक सूची का उत्तर देने के बारे में बात कर रहा है।
• वाक्य में 'questionnaire' शब्द का प्रयोग किसी विशेष विषय के बारे में जानकारी एकत्र करने के लिए किया जाता है।
• इसलिए, रिक्त स्थान में भरने के लिए सबसे उपयुक्त शब्द 'attached' है।
• 'Attached' शब्द का अर्थ है किसी चीज़ से जुड़ना, बांधना या जुड़ा होना।
• उदाहरण: Please fill out the attached blank.

अत: सही उत्तर विकल्प 1 है।

पूर्ण वाक्य: Please complete the short questionnaire attached and return it to us.

The correct answer is 'Join.'

Key Points

• The given word 'Resign' means to leave your job or position. (नौकरी या पद छोड़ना या त्‍यागपत्र देना)
• Example: He was forced to resign due to ill health.
• ​Let's see the meaning of other given options:-
• 'Accept' means to agree to take something that somebody offers you. (दी गई वस्‍तु को स्‍वीकार या ग्रहण करना)
• Example: We accept online and cheque payments.
• 'Reject' means to refuse to accept somebody or something. (व्‍यकि्त या वस्‍तु को अस्‍वीकार करना)
• Example: Patients often reject transplanted organs.
• 'Sign' means to write your name on a letter, document, etc. to show that you have written it or that you agree with what it says. (पत्र, दस्‍तावेज़ आदि पर हस्‍ताक्षर करना)
• Example: Both sides have agreed to sign the treaty.
• 'Join' means to become a member or employee of an organization. (किसी संगठन का सदस्य या कर्मचारी बनना)
• Example: He beckoned her to come and join them.

Hence, the correct answer is option 4.

Additional Information

• The antonyms of the word 'Resign' are "join, assume, secure".
• The synonyms of the word 'Resign' are "quit, vacate, abdicate".

The correct answer is 'To delay taking a decision.'

Key Points

• Given Idiom: To drag one’s feet means to delay taking a decision. (निर्णय लेने में देरी करना)
• Example: I have asked my boss to give me a raise but he keeps dragging his feet.
• From the given options, the second option is the most appropriate meaning of the given idiom.

Hence, the correct answer is option 2.

Mistake Points

• We may think from the phrase "To drag one’s feet" that it is all about trying to pull someone's leg with difficulty.

Additional Information

• This metaphor for allowing one's feet to trail dates from the mid-1900s.

The correct answer is 'that we wanted' i.e. this part of the sentence has an error.

Key Points

• In the given sentence, the use of the conjunction 'that' is incorrect.
• The given sentence is talking about some people purchasing whatever they wanted.
• The conjunction 'that' is used for introducing a subordinate clause expressing a statement or hypothesis.
• The pronoun 'what' should be used in place of the conjunction 'that'.
• The pronoun 'what' means whatever (referring to the whole of an amount).
• Therefore, the pronoun 'what' should be used in place of the conjunction 'that'.

Hence, the correct answer is option 2.

Correct sentence: After a long gap, we went shopping last Sunday and bought what we wanted.

Hinglish

• दिए गए वाक्य में conjunction 'that' का प्रयोग गलत है।
• दिया गया वाक्य कुछ लोगों के बारे में बात कर रहा है कि वे जो कुछ भी चाहते थे उसे खरीद रहे थे।
• एक कथन या परिकल्पना को व्यक्त करने वाले subordinate clause को पेश करने के लिए conjunction 'that' का उपयोग किया जाता है।
• Conjunction 'that' के स्थान पर pronoun 'what' का प्रयोग करना चाहिए।
• Pronoun 'what' का अर्थ है जो कुछ भी।
• इसलिए, conjunction 'that' के स्थान पर pronoun 'what' का प्रयोग करना चाहिए।

अत: सही उत्तर विकल्प 2 है।

सही वाक्य: After a long gap, we went shopping last Sunday and bought what we wanted.

The correct answer is 'Dwelling.'

Key Points

• The given word 'Abode' means the place where you live. (निवास स्‍थान; घर; आवास)
• Example: Badrinath is considered the abode of Lord Vishnu.
• ​Let's see the meaning of other given options:-
• 'Dwelling' means the place where a person lives; a house. (निवास-स्‍थान; आवास गृह)
• Example: Come, sleep in my dwelling tonight.
• 'Aboard' means on or onto a train, ship, aircraft, or bus. (रेलगाड़ी, जहाज़, विमान या बस पर सवार)
• Example: The Captain and crew welcome you aboard.
• 'Annex' means to take control of another country or region by force. (अन्‍य देश पर बलपूर्वक अधिकार कर लेना)
• Example: Hitler was determined to annex Austria to Germany.
• 'Habituation' means the action or process of becoming habituated. (अभ्यस्त होने की क्रिया या प्रक्रिया)
• Example: Habituation, by contrast, reduces responsiveness to the familiar.

Hence, the correct answer is option 1.

Additional Information

• The synonyms of the word 'Abode' are "dwelling, shelter, habitation".

The correct answer is 'No substitution required.'

Key Points

• In the underlined segment of the sentence, no correction or substitution is required.
• The given sentence is talking about fermented vegetables that don't become unpleasant or bad even if kept for about a year.
• The preposition 'without' is correctly used with a verb in the ''-ing'' form to mean 'not'.
• Go bad is an idiom meaning to no longer be fresh enough to eat or drink; to become spoiled.
• For Example - Is the milk still good or has it gone bad?
• Thus, the given sentence is trying to express the fact that fermented vegetables can be stored for about a year and they do not go bad during this period i.e. they are not spoiled if we store them after fermentation for a year.

Hence, the correct answer is option 2.

Correct sentence: Fermented vegetables can be stored for about a year without going bad.

Hinglish

• वाक्य के रेखांकित खंड में किसी सुधार या प्रतिस्थापन की आवश्यकता नहीं है।
• दिया गया वाक्य किण्वित सब्जियों के बारे में बात कर रहा है जो लगभग एक साल तक रखने पर भी अप्रिय या खराब नहीं होती हैं।
• Preposition 'without' का प्रयोग ''-ing'' रूप में क्रिया के साथ सही ढंग से किया जाता है जिसका अर्थ 'नहीं' होता है।
• Go bad एक मुहावरा है जिसका अर्थ है कि अब खाने या पीने के लिए पर्याप्त ताजा नहीं होना; खराब हो जाना।
• उदाहरण के लिए -  Is the milk still good or has it gone bad?
• इस प्रकार, दिया गया वाक्य इस तथ्य को व्यक्त करने का प्रयास कर रहा है कि किण्वित सब्जियों को लगभग एक वर्ष तक संग्रहीत किया जा सकता है और वे इस अवधि के दौरान खराब नहीं होती हैं अर्थात यदि हम उन्हें एक वर्ष तक किण्वन के बाद संग्रहीत करते हैं तो वे खराब नहीं होती हैं।

अत: सही उत्तर विकल्प 2 है।

The correct answer is 'Imperative.'

Key Points

• The given word 'Mandatory' means forcing one's compliance or participation by or as if by law. (क़ानूनन आवश्‍यक, अनिवार्य)
• Example: A reply to this letter is mandatory.
• ​Let's see the meaning of given options:-
• 'Unnecessary' means not needed. (ग़ैर-ज़रूरी, अनावश्‍यक या अनपेक्षित, व्‍यर्थ का)
• Example: In writing this report I have omitted all unnecessary details.
• 'Imperative' means giving an authoritative command. (एक आधिकारिक आदेश देना)
• Example: We consider it absolutely imperative to start work immediately.
• 'Impervious' means not affected or influenced by something. (जिस पर किसी बात का असर नहीं होता या जो किसी के असर में नहीं आता; अप्रभावनीय)
• Example: She was completely impervious to criticism.
• 'Optional' means something that you can choose or not choose. (वैकल्पिक जिसे आप चुन या छोड़ सकते हैं)
• Example: Certain courses are compulsory, others are optional.

Hence, the correct answer is option 2.

Additional Information

• The synonyms of the word 'Mandatory' are "imperative, compulsory, forced".
• The antonyms of the word 'Mandatory' are "insignificant, unnecessary, unwanted".

The correct answer is 'BDAC.'

Key Points

• The sentence 'B' is independent of any other sentence as it is giving general information about "the two major aspects relating to the medical profession and its practice". Hence, 'B' is the first part.
• Sentence D will come after B as it is introducing the first aspect out of the two major aspects i.e. the ethics of medical practitioners.
• Sentence A will come after D as it is talking about the other aspect related to certain issues.
• The sentence 'C' is the concluding part because it explains that such issues should be discussed in the public domain.

Paragraph after rearranging the sentences: There are two major aspects relating to the medical profession and its practice the world over. One of these is the ethics of medical practitioners in their day-to-day relationship with their patients and with one another. The other aspect touches upon certain issues that have arisen in recent years, such as brain-death, mercy killing and cloning. These issues must be discussed and debated in the public domain in terms of our cultures and value systems.

Hint

• Important Rules to Solve the Para Jumbles:
• Read the sentences attentively and try to comprehend the idea or theme of the sentence and eliminate the irrelevant options.
• Try to identify the opening (independent sentence) and closing sentences (concluding sentence).
• Try to identify the mandatory pairs. Two sentences can be connected through various connectors and other determinants.

Hinglish

• वाक्य 'B' किसी अन्य वाक्य से स्वतंत्र है क्योंकि यह "चिकित्सा पेशे और उसके अभ्यास से संबंधित दो प्रमुख पहलुओं" के बारे में सामान्य जानकारी दे रहा है। अतः 'B' पहला भाग है।
• वाक्य D, B के बाद आएगा क्योंकि यह दो प्रमुख पहलुओं में से पहला पहलू पेश कर रहा है अर्थात चिकित्सा चिकित्सकों की नैतिकता के बारे में जानकारी दे रहा है।
• वाक्य A, D के बाद आएगा क्योंकि यह कुछ मुद्दों से संबंधित अन्य पहलू के बारे में बात कर रहा है।
• वाक्य 'C' समापन भाग है क्योंकि यह बताता है कि ऐसे मुद्दों पर सार्वजनिक डोमेन में चर्चा की जानी चाहिए।

The correct answer is 'Contemporary.'

Key Points

• Let's see the meanings of the given words-
• Preceding - to happen, come or go before somebody or something. (किसी अन्‍य व्‍यक्ति या वस्‍तु से पहले होना, जाना या आना, पूर्ववर्ती होना)
• Ancient - belonging to a period of history that is thousands of years in the past. (प्राचीन, पुरातन, हज़ारों वर्ष पुराना)
• Contemporary - relating to the present time; modern. (इसी समय का; वर्तमानकालिक; आधुनिक)
• Corollary - a situation, a statement, or a fact that is the natural and direct result of another one. (ऐसी स्थिति या कथन जो अन्‍य स्थिति या कथन का स्‍वाभाविक और प्रत्‍यक्ष परिणाम है; निष्कर्ष, अनुमिति)

​

Hence, the correct answer is option 3.

The correct answer is 'human.'

Key Points

• The given sentence "All of us know that the American astronaut Neil Armstrong was the first (1) to set foot on the Moon in July 1969.'' is talking about the first astronaut to set foot on the Moon.
• The use of the word 'astronaut' in the sentence indicates a person who travels in a spacecraft.
• The word 'human' means connected with people, not with animals, machines or gods; typical of people. 
• Example: All human beings are mortal.

Hence, the correct answer is option 4.

Complete Sentence: All of us know that the American astronaut Neil Armstrong was the first human to set foot on the Moon in July 1969.

Additional Information

• Let us explore  the other options:
• 'Organism' means an individual animal, plant, or single-celled life form. (अति सूक्ष्‍म जीव केवल सूक्ष्‍मवीक्षण यंत्र से देखने योग्‍य; अवयव)
• 'Creature' means a living thing such as an animal, a bird, a fish or an insect, but not a plant. (पशु, पक्षी आदि प्राणी परंतु पौधे नहीं; जीव)
• 'Object' means a thing that can be seen and touched, but is not alive. (वस्‍तु जिसे देखा और स्‍पर्श किया जा सकता है, परंतु उसमें चेतना नहीं होती वस्‍तु, पदार्थ)

Hinglish

• दिया गया वाक्य "All of us know that the American astronaut Neil Armstrong was the first (1) to set foot on the Moon in July 1969.'' चंद्रमा पर पैर रखने वाले पहले अंतरिक्ष यात्री के बारे में बात कर रहे हैं।
• वाक्य में 'astronaut' शब्द का प्रयोग उस व्यक्ति को इंगित करता है जो अंतरिक्ष यान में यात्रा करता है।
• 'Human' शब्द का अर्थ है मानव या मनुष्‍य से संबंधित, पशुओं, मशीनों या देवताओं से नहीं, मानवीय; मानव जाति का प्रतिनिधिक।
• उदाहरण: All human beings are mortal.

अत: सही उत्तर विकल्प 4 है।

पूर्ण वाक्य: All of us know that the American astronaut Neil Armstrong was the first human to set foot on the Moon in July 1969.

The correct answer is 'surface.'

Key Points

• The given sentence "Human footprints on the lunar (2) won’t disappear for millions of years.'' is talking about the footprints that won't disappear from the lunar surface.
• The use of the word 'footprints' in the sentence indicates marks that are left on the ground or a surface by a foot or a shoe.
• The word 'surface' means the outside part or uppermost layer of something. 
• Example: The moon's surface is pocked with small craters.

Hence, the correct answer is option 3.

Complete Sentence: Human footprints on the lunar surface won’t disappear for millions of years.

Additional Information

• Let us explore  the other options:
• 'Rock' means the hard, solid material that forms part of the surface of the earth. (पत्‍थर की चट्टान)
• 'Dust' means very small pieces of dry dirt, sand, etc. in the form of a powder. (धूल, मिट्टी, गर्द)
• 'Eclipse' means an occasion when the moon or the sun seems to completely or partly disappear, because one of them is passing between the other and the earth. (चंद्रमा या सूर्य का कुछ देर के लिए, पूर्ण रूप से, या आंशिक रूप से पृथ्‍वी वासियों को दिखाई न पड़ना; ग्रहण)

Hinglish

• दिया गया वाक्य "Human footprints on the lunar (2) won’t disappear for millions of years.'' उन पैरों के निशान के बारे में बात कर रहा है जो चंद्र सतह से गायब नहीं होंगे।
• वाक्य में 'footprints' शब्द का प्रयोग उन निशानों को इंगित करता है जो पैर या जूते द्वारा जमीन या सतह पर छोड़े गए हैं।
• 'Surface' शब्द का अर्थ है किसी वस्‍तु का बाहरी हिस्‍सा; सतह।
• उदाहरण: The moon's surface is pocked with small craters.

अत: सही उत्तर विकल्प 3 है।

पूर्ण वाक्य: Human footprints on the lunar surface won’t disappear for millions of years.

The correct answer is 'erode.'

Key Points

• The given sentence "That is because there is no rain or wind to (3) them.'' is telling why the human footprints won't disappear on the lunar surface.
• The use of the phrase 'rain or wind' in the sentence indicates the use of the word 'erode'.
• The word 'erode' means (of wind, water, or other natural agents) destroy something slowly. 
• Example: Wind and spring floods erode soils, exposing underlying layers and premiering new compositions of humus and minerals on the surface.

Hence, the correct answer is option 2.

Complete Sentence: That is because there is no rain or wind to erode them.

Additional Information

• Let us explore  the other options:
• 'Replicate' means to copy something exactly. (किसी वस्‍तु की प्रतिकृति या हूबहू नक़ल करना या बनाना)
• 'Restore' means to put somebody or something back into his/her/its former condition or position. (व्‍यक्ति या वस्‍तु को उसकी पूर्व दशा या स्थिति में लाना)
• 'Recreate' means to create again; reproduce. (फिर से बनाना; पुन: पेश)

Hinglish

• दिया गया वाक्य "That is because there is no rain or wind to (3) them.'' बता रहा है कि चांद की सतह पर इंसान के पैरों के निशान क्यों नहीं गायब होंगे।
• वाक्य में 'rain or wind' वाक्यांश का प्रयोग 'erode' शब्द के प्रयोग को इंगित करता है।
• 'Erode' शब्द का अर्थ है (हवा, पानी, या अन्य प्राकृतिक एजेंट) जो धीरे-धीरे कुछ नष्ट कर देते हैं।
• उदाहरण: Wind and spring floods erode soils, exposing underlying layers and premiering new compositions of humus and minerals on the surface.

अत: सही उत्तर विकल्प 2 है।

पूर्ण वाक्य: That is because there is no rain or wind to erode them.

The correct answer is 'study.'

Key Points

• The given sentence "Astronauts have so far brought back hundreds of kilos of rock and dust from the Moon to (4).'' is telling why astronauts brought back rock and dust from the Moon.
• It implies that the astronauts brought back rock and dust from the moon to research in detail.
• The word 'study' means a piece of research that examines a question or a subject in detail. 
• Example: Physiology is the study of how living things work.

Hence, the correct answer is option 4.

Complete Sentence: Astronauts have so far brought back hundreds of kilos of rock and dust from the Moon to study.

Additional Information 

• Let us explore  the other options:
• 'Show' means to make something clear; to give information about something. (किसी बात को स्‍पष्‍ट करना; किसी बात के विषय में जानकारी देना)
• 'Store' means to keep something or a supply of something for future use. (भविष्‍य के प्रयोग के लिए किसी वस्‍तु या वस्‍तु की आपूर्ति को सुरक्षित रखना)
• 'Sell' means to give or hand over something in exchange for money. (किसी को कुछ बेचना)

Hinglish

• दिया गया वाक्य "Astronauts have so far brought back hundreds of kilos of rock and dust from the Moon to (4).'' बता रहा है कि अंतरिक्ष यात्री चंद्रमा से चट्टान और धूल क्यों वापस लाए।
• इसका तात्पर्य यह है कि अंतरिक्ष यात्री विस्तार से शोध करने के लिए चंद्रमा से चट्टान और धूल वापस लाए।
• 'Study' शब्द का अर्थ है किसी मुद्दे या विषय पर विस्‍तार से अनुसंधान; खोजपरक अध्‍ययन।
• उदाहरण: Physiology is the study of how living things work.

अत: सही उत्तर विकल्प 4 है।

पूर्ण वाक्य: Astronauts have so far brought back hundreds of kilos of rock and dust from the Moon to study.

The correct answer is 'lit.'

Key Points

• The given sentence "As it does so, we see different amounts of its side (5) by the Sun.'' is talking about the light provided to the moon by the sun.
• The use of the word 'sun' in the sentence indicates light and heat from the sun.
• The word 'lit' means provided with light or lighting; illuminated. 
• Example: All the streets were lit up by lights.

Hence, the correct answer is option 3.

Complete Sentence: As it does so, we see different amounts of its side lit by the Sun.

Additional Information

• Let us explore  the other options:
• 'Heated' means to become or to make something hot or warm. (गरम या गुनगुना हो जाना या कर देना)
• 'Hidden' means to cover something so that it cannot be seen. (छिपा देना)
• 'Covered' means to put something on or in front of something to hide or protect it. (छिपाने या बचाने के लिए ढकना)

Hinglish

• दिया गया वाक्य "As it does so, we see different amounts of its side (5) by the Sun.'' सूर्य द्वारा चंद्रमा को प्रदान किए गए प्रकाश के बारे में बात कर रहा है।
• वाक्य में 'sun' शब्द का प्रयोग सूर्य से प्रकाश और गर्मी को इंगित करता है।
• 'Lit' शब्द का अर्थ है प्रकाश या प्रकाश व्यवस्था के साथ प्रदान किया गया; प्रकाशित।
• उदाहरण: All the streets were lit up by lights.

अत: सही उत्तर विकल्प 3 है।

पूर्ण वाक्य: As it does so, we see different amounts of its side lit by the Sun.

The logical sequence is:-

In the restaurant first, we order the food, then chef cooking, then serve food and then eating, which is given below:-

1. Restaurant
2. Order food
3. Cooking
4. Serve food
5. Eating

Hence, "option 2" is the correct answer.

The logic followed here is:

From option 1:-

From option 2:-

From option 3:-

From option 4:-

Option 1 is different from others.

Hence, "option 1" is the correct answer.

The Venn diagram are given below:-

The shaded part represents "doctors are Indians but NOT tennis players"

9 doctors are Indians but NOT tennis players.

Hence, "option 4" is the correct answer.

The logic followed here is:

Hence, "option 4" is the correct answer.

The pattern followed here is:

We know that 

1. Counting the numbers of triangles.

Counting the figure separately:

Total Triangles = 3 + 3 + 3 + 1 + 1 = 11

Hence, the correct answer is "11".

 

Alternate Method

The diagram is given below:-

The triangles are ACE, AEG, AEH, BKC, CJD, CED, DEJ, ELI, EFI, FEL and EGH.

There are total of 11 triangles present.

Hence, "option 2" is the correct answer.

The mirror image is given below:-

Hence, "option 4" is the correct answer.

The logic followed here is:

A liter is related to milliliters in that way 1 liter is equal to 1000 (10³) milliliters.

Similarly,

In option 4:-

1 Kilogram is equal to 1000 grams (10³).

In option 1:-

Inch is the unit of height.

In option 2:-

Luminance is the unit of Tesla.

In option 3:-

The meter is the unit of distance.

Hence, "option 4" is the correct answer.

Additional Information

• One tesla is equal to one weber per square metre (1 Wb · m ^-2).

The option in which the given figure is embedded when rotation is not allowed is shown below:

Hence, "option 1" is the correct answer.

The logic followed here is:

2^nd number is completely divisible by the 1^st number.

In option 1:-

144 ÷ 18 = 8, which means 144 is divisible by 18.

In option 2:-

122 ÷ 11 = 11.09, which means 122 is not divisible by 11.

In option 3:-

168 ÷ 21 = 8, which means 168 is divisible by 21.

In option 4:-

112 ÷ 14 = 8, which means 112 is divisible by 14.

Thus option 2 is different from others.

Hence, "option 2" is the correct answer.

The logic followed here is:

Filling the blanks with each set of the given letters,

From option 1:- b c c f / b f c d / b d c f → No pattern or series can be formed.

From option 2:- f d c f / b c c b / b d c f → No pattern or series can be formed.

From option 3:- d c c f / b d c f / b d b f → No pattern or series can be formed.

From option 4:- b d c f / b d c f / b d c f → This forms a series with a set pattern.

(Repetition of b d c f).

Hence, "option 4" is the correct answer.

The logic followed here is:

[2^nd number - (1^st number / 2)] / 3 = 3^rd number.

Row 1: 14, 22, 5

⇒ [22 - (14 / 2)] / 3

⇒ (22 - 7) / 3

⇒ 15 / 3 = 5

Row 2: 18, 42, 11

⇒ [42 - (18 / 2)] / 3

⇒ (42 - 9) / 3

⇒ 33 /3 = 11

Similarly, 

Row 3: 22, 35, ?

⇒ [35 - (22 / 2)] / 3

⇒ (35 - 11) / 3

⇒ 24 / 3 = 8

Hence, the correct answer is "8".

Given equation 

25 * 48 * 6 * 12 * 2 = 41

From equation 1:-

−, ×, +, ÷

25 − 48 × 6 + 12 ÷ 2 = 41

Applying BODMAS rule:-

25 − 48 × 6 + 6 = 41

25 − 288 + 6 = 41

31 − 288 = 41

-257 = 41, It is not balance equation.

From equation 2:-

−, ÷, +, ×

25 − 48 ÷ 6 + 12 × 2 = 41

Applying BODMAS rule:-

25 − 8 + 12 × 2 = 41

25 − 8 + 24 = 41

49 − 8 = 41

41 = 41, It is balance equation.

From equation 3:-

÷, ×, +, −

25 ÷ 48 × 6 + 12 − 2 = 41

Applying BODMAS rule:-

0.52 × 6 + 12 − 2 = 41

3.12 + 12 − 2 = 41

15.12 − 2 = 41

13.12 = 41, It is not balance equation.

From equation 4:-

+, ÷, −, ×

25 + 48 ÷ 6 − 12 × 2 = 41

Applying BODMAS rule:-

25 + 8 − 12 × 2 = 41

25 + 8 − 24 = 41

33 − 24 = 41

9 = 41, It is not balance equation.

Hence, "option 2" is the correct answer.

The logic is followed here-

We add the first number and second number and divide by 2 and get the number, that number is added in the first number and that number subtract from the second number and we multiply both resultant numbers and get the third number.

For (12, 18, 225)

12 + 18 = 30 ÷ 2 = 15

= 15² = 225 

Similarly,

From option 3:-

For (25, 15, 400)

25 + 15 = 40 ÷ 2 = 20

= 20² = 400, It is correct.

From option 1:-

For (13, 17, 140)

13 + 17 = 30 ÷ 2 = 15

= 152 = 225 ≠ 140, It is not correct.

From option 2:-

For (23, 13, 272)

23 + 13 = 36 ÷ 2 = 18

= 182 = 324 ≠ 272, It is not correct.

From option 4:-

For (21, 10, 324)

21 + 10 = 31 ÷ 2 = 15.5

= 15.52 = 240.25 ≠ 324, It is not correct.

Hence, "option 3" is the correct answer.

The family tree is given below:-

Man is the husband of Rashmi.

Hence, "option 4" is the correct answer.

For this question, the relation is given below -

 

From figure (A) and figure (B), only 5 is common.

Now we take clockwise direction from 5 in figure (A) and figure (B) respectively, then letter opposite to each other.

From figure (A) take a clockwise direction from 5 which is 3 and 1 respectively.

From figure (B) take a clockwise direction from 5 which is 2 and 4 respectively.

From figure (A) 3 is opposite to figure (B) 2.

From figure (A) 1 is opposite to figure (B) 4.

From figure (A) 5 is opposite to figure (B) 6.

Hence, "6" is the correct answer.

The logic followed here is:

1. Arrow (

) moves from the top left side to the bottom left side,  then arrow (

) moves from the bottom left side to the bottom right side and then finally arrow (

) moves from the bottom right side to the top right side.

• The arrow symbol in the given images is rotating anti-clockwise direction.

2. The single line (

) parallel to the rectangle then the next two lines (

) are parallel to the rectangle then next take the single line (

) parallel to the rectangle then next two lines (

) are parallel to the rectangle.

• The number of lines in below the diamond symbol keeps on increasing or decreasing in each step.

3. Diamond moves clockwise direction with 90° each block.

Hence, "option 1" is the correct answer.

The Venn diagram is given below:-

Conclusions:

I. All satellites are stars. → False (If all stars are satellites then never be all satellites are stars.)

II. Some satellites are planets. → True (Some planets are stars, all stars are satellites then some satellites are planets are possible.)

Hence, "option 4" is the correct answer.

The logic followed here is:

Similarly,

Hence, "option 2" is the correct answer.

The logic followed here is:

Except dislike, all words are synonyms to each other whereas dislike is the antonyms.

Option 1 → Consensus means agreement among a group of people.

Option 2 → Rapport means a friendly relationship in which people understand each other very well.

Option 4 → Amicability means characterized by or showing goodwill, friendly.

Thus dislike is different from others.

Hence, "option 3" is the correct answer.

The logic followed here is: 

Square of the 1^st number + 1 = 2^nd number.

For 19 : 362; 

19² + 1 = 361 + 1 = 362

For 17 : 290;

172 + 1 = 289 + 1 = 290

Similarly,

For  ? : 442 ;

?² + 1 = 442

?² = 442 - 1 = 441

? = 21

Hence, "option 1" is the correct answer.

Total number of candies = 1012

Distributed among Virat, Ketan and Rohan respectively = 6 : 9 : 8

Let number of candies taken by Virat = 6x, Number of candies taken by Ketan = 9x and number of candies taken by Rohan = 8x

6x + 9x + 8x = 1012

23x = 1012

x = 44

Number of candies taken by Rohan = 8 × 44 = 352

Hence, "option 2" is the correct answer.

Table show alphabet serial number –

Given: THICK is written as FELHW

The logic followed here is,

1) Given letters in a word are arranged in alphabetical order i.e. A to Z

2) Then alternate alphabets increasing and decreasing by +3 and -3.

‘THICK’ is written as ‘FELHW’

1. THICK → Alphabetical order → CHIKT

2. Then alternate alphabets increasing and decreasing by +3 and -3.

Similarly,

RAISE = ?

1) RAISE → Alphabetical order → AEIRS

2) Then alternate alphabets increasing and decreasing by +3 and -3.

Hence, ‘’RAISE is coded as ‘DBLOV’.

The paper when unfolded appear as shown below-

Hence, "option 3" is the correct answer.

The logic followed here is:

We add place value of all letters and then multiply by 2, we get answer:-

VISION is written as 176.

V(22) I(9) S(19) I(9) 0(15)  N(14) Multiply by 2

= 22 + 9 + 19 + 9 + 15 + 14 = 88 × 2 = 176, and

Similarly,

SEEING = ?

S(19) E(5) E(5) I(9) N(14) G(7) Multiply by 2

= 19 + 5 + 5 + 9 + 14 + 7 = 59 × 2 = 118.

Hence, "option 3" is the correct answer.

The logic followed here is:

Euro is the currency of France.

Similarly,

Kyat is the currency of Myanmar.

Hence, "option 3" is the correct answer.

Additional Information

• Euro is the currency of France, Germany.
• Yen is the currency of Japan
• Ringgit is the currency of Malaysia.

Given:

∠DBC = 72° 

∠BAC = 42° 

Calculation:

For chord CD,

∠CBD = ∠CAD ....(Angles in same segment)

∠CAD = 72° 

∠BAD = ∠BAC + ∠CAD = (42° + 72°)

⇒ 114° 

 ∠BCD + ∠BAD 180° ..(opposite angles of a cyclic quadrilateral)

⇒ ∠BCD + 114° = 180° 

⇒ ∠BCD = (180° – 114°)

⇒ ∠BCD = 66° 

∴ The required angle of ∠BCD is 66°

Calculation:

C = 120° 

C = 2100 Units 

120° = 2100 Units 

Total Units sold by company in 2019 (360°) = (2100/120 × 360)

⇒ 6300

Total units sold by company in 2020 = 28% more than that in 2019

⇒ 6300 + (6300 × 28/100)

Units sold by company in 2020 = (6300 + 1764)

⇒ 8064

∴ Required units were sold by company in 2020 is 8064

Given:

AD = 2 cm

BD = 5.2 cm

AC = 9 cm

Formula used:

AD/AB = AE/AC

Calculation:

According to the question

⇒ AD/AB = AE/AC

⇒ 2/(2 + 5.2) = x/9

⇒ 2/7.2 = x/9

⇒ 7.2x = 18

⇒ x = 2.5 cm

∴ The value of x is 2.5

Given:

PR = 5 cm

PS = 6 cm

ST = 4 cm

Concept used:

Angle bisector theorem -  The angle bisector theorem is concerned with the relative lengths of the two segments that a triangle's side is divided into by a line that bisects the opposite angle. 

Calculation:

According to the question

PT = (PS + ST)

⇒ (6 + 4) cm 

⇒ PT = 10 cm

Now,

In ΔPQS and ΔPTR

∠P = ∠P

∠PQR = ∠PTR (Angles made by same chord on circumference)

So, ΔPQS ∼ ΔPTR 

⇒ PS/PR = PQ/PT

⇒ 6/5 = PQ/10

⇒ 5PQ = 60

⇒ PQ = 12 cm

∴ The value pf PQ is 12 cm.

Given:

The total sum of money = Rs. 11,236

Ratio of A and B = 3 : 5

Ratio of A and C = 4 : 7

Calculation:

Let the total sum be x

Simplifying the ratios to get the same unit by cross multiplication

Ratio of A and B = (3 : 5) × 4

⇒12 : 20

Ratio of A and C = (4 : 7) × 3

⇒ 12 : 21

Ratio of A, B and C = 12 : 20 : 21

Total sum = Rs. (12x + 20x + 21x)

⇒ 53x = 11,236

⇒ x = 212

The share of B = 20x = (20 × 212)

⇒ Rs. 4240

∴ The share of B is Rs. 4240

Given:

Time taken to complete the work by A = x days

Time taken to complete the work by B = 30 days

Time taken to complete the work by C = 45 days

Time taken to complete the work by B and C together = 6 days

Remaining work completed by A = 12 days

Formula used:

Work = Efficiency × Time

Calculation:

LCM of 30 and 45 is 90

Efficiency of B = 90/30 = 3 units/day

Efficiency of C = 90/45 = 2 units/day

Total units of work by B and C together = [(3 + 2) × 6]

⇒ 30 units

Efficiency of B and C together = (90 – 30) = 60 units

Efficiency of A = (60/12) = 5 units/day

Hence, A can complete the whole work in = (90/5) days

⇒ x = 18 days

∴ The value of x is 18

Given:

x + y + z = 3, x2 + y2 + z2 = 45 and x3 + y3 + z3 = 69

Formula used:

(x + y + z)2 =  x2 + y2 + z2 + 2(xy + yz + zx)

 x3 + y3 + z3 – 3xyz = (x + y + z){(x2 + y2 + z2) – (xy + yz +zx)}

Calculation:

x + y + z = 3, x2 + y2 + z2 = 45 and x3 + y3 + z3 = 69

⇒ (x + y + z)² =  x2 + y2 + z²+ 2(xy + yz + zx)

⇒ (3)² = 45 + 2(xy + yz +zx)

⇒ 9 = 45 + 2(xy + yz +zx)

⇒ -36 = 2(xy + yz +zx)

⇒ (xy + yz +zx) = -18

Now,

 x3 + y3 + z³ – 3xyz = (x + y + z){(x2 + y2 + z2) – (xy + yz +zx)}

⇒ 69 – 3xyz = 3 {(45) – (-18)}

⇒ 69 – 3xyz = 3 × {(45 + 18)}

⇒ 69 – 3xyz = 3 × 63

⇒ 69 – 3xyz = 189

⇒ 3xyz = (69 – 189)

⇒ 3xyz = -120

⇒ xyz = -40

∴ The value of xyz is -40

Given:

 sin θ( 2 sin θ + 3) = 2

Formula used:

Sin 30° = 1/2

Sec 30° = 2/√3

Cos 30° = √3/2

Cot 30° = √3

Calculation:

sin θ( 2 sin θ + 3) = 2

⇒ 2sin²θ + 3sinθ – 2 = 0

⇒ 2sinθ(sinθ + 2) – 1(sinθ + 2)

⇒ sinθ = 1/2

⇒ θ = 30° 

Now,

(sec2 θ + cot2 θ - cos2 θ)

⇒ (2/√3)² + (√3)² – (√3/2)²

⇒ (4/3 + 3 – 3/4)

⇒ (16 + 36 – 9)/12

⇒ 43/12

∴ Required value is 43/12

Calculation:

The number of girls in class A = 31

Total number of boys, girls and teachers allotted in the class A = (27 + 31 + 8) = 66

Percentage of girls in class A = (31/66 × 100)

⇒ 46.96%

The number of girls in class B = 30

Total number of boys, girls and teachers allotted in the class B = (35 + 30 + 10) = 75

Percentage of girls in class B = (30/75 × 100)

⇒ 40%

The number of girls in class C = 32

Total number of boys, girls and teachers allotted in the class C = (30 + 32 + 9) = 71

Percentage of girls in class C = (32/71 × 100)

⇒ 45.07%

The number of girls in class D = 34

Total number of boys, girls and teachers allotted in the class D = (33 + 34 + 7) = 74

Percentage of girls in class D = (34/74 × 100)

⇒ 45.94%

∴ The least percentage of girls in class B

Given:

X and Y start running towards each other from two places = 216 km

The ratio of X and Y = 5 : 7

The speed of X = 60 km/h

Formula used:

Time = Distance/Speed

1 hr = 60 min

Calculation:

Let the ratio of speed of X and Y be 5x and 7x respectively

According to the question

⇒ 5x = 60

⇒ x = 12

Then,

Speed of Y = 7x = (7 × 12) = 84 km/h

Now,

Time = [216/(60 + 84)]

⇒ (216/144)

⇒ 1.5 Hour = (1.5 × 60) min

⇒ 90 min

∴ Time taken to meet X and Y is 90

Given:

Amount₁ = Rs. 9,246

Time₁ = 4 years

Amount₂ = Rs. 11,298.75

Time₂ = $7\frac{1}{2}$ years

Calculation:

Let the Principal be x and Rate be y respectively

According to the question

SI on Rs. 9246 for (15/2 – 4) years = Rs. (11298.75 – 9,246)

⇒ 7/2 years = Rs. 2052.75

⇒ 1 year = (2052.75 × 2)/7

⇒ 1 year = Rs. 586.5

⇒ 4 years = Rs. (586.5 × 4)

⇒ Rs 2346

Principal = (9246 – 2346) = Rs. 6900

Now,

Rate = (586.5/6900 × 100)

⇒ (58650/6900)

⇒ 8.5

∴ The value of x and y is 6900 and 8.5

Given:

4√3x2 + 5x – 2√3 = (Ax + 2)(Bx + C)

Calculation:

4√3x2 + 5x – 2√3

⇒ 4√3x² + 8x – 3x – 2√3

⇒ 4x(√3x + 2) – √3(√3x + 2)

⇒ (√3x + 2) (4x – √3)

Now,

⇒ A = √3, B = 4 and C = -√3

(A + B + C) = (√3 + 4 + (-√3)

⇒ (√3 + 4 – √3)

⇒ 4

∴ The required value is 4

Concept Used:

Mass point geometry - It is a geometry problem-solving technique which applies the physical principle of the center of mass to geometry problems involving triangles and intersecting cevians.

Ceva’s theorem is a theorem regarding triangles in Euclidean Plane Geometry. Consider a triangle ABC. Let CE, BG and AF be a cevians that forms a concurrent point i.e. D.

A/GC × CF/FB × BE/EA = 1 

Calculation:

Here, F is the cevian, So, 

(BD/DA) × (AG/GC) × (CE/BE) = 1

⇒ (1/2) × (AG/GC) × (1/4) = 1

⇒ (AG/GC) × (1/8) = 1

⇒ (AG/GC) = 8 : 1

Now, As per the other theorem

(CF/FD) = (GC/AG) + (CE/BE)

⇒ (CF/FD) = (1/8) + (1/4)

⇒ (CF/FD) = (1 + 2)/8 = 3/8

⇒ FD/FC = 8/3

∴ FD : FC is 8 : 3

Given:

Length of triangle = 97 m

Base of a triangle =65 m

Height of triangle = 72 m

Ratio of length and breadth of a rectangle = 5 : 13

Formula used:

Area of triangle = 1/2 × base × height 

Area of rectangle = length × breadth

Perimeter of rectangle = 2(l + b)

Calculation: h

Please note that 65 m 72 m, and 97 m is a right-angle triangle as

65² + 72² = 97²

Let the ratio of length and breadth of rectangle be 5x and 13x

According to the question

⇒ (1/2 × 65 × 72) = (5x × 13x)

⇒ (65 × 36) = 65x²

⇒ x² = (65 × 36)/65

⇒ x² = 36

⇒ x = 6 m

Perimeter of rectangle = 2(5x + 13x)

⇒ (2 × 18x)

⇒ 36x

Now,

⇒ (36 × 6) = 216 m

∴ Perimeter of rectangle is 216 m

Concept Used:

Follow the BODMAS rule according to the table given below:

Calculation:

6 × 3 ÷ 8 of 6 – 6 ÷ 4 × (5 - 7) + 5 – 3 × 4 ÷ 6 of 3

⇒ 6 × 3 ÷ 8 of 6 – 6 ÷ 4 × (-2) + 5 – 3 × 4 ÷ 6 of 3

⇒ 6 × 3 ÷ 48 – 6 ÷ 4 × (-2) + 5 – 3 × 4 ÷ 18

⇒ 6 × 3/48 – 6 ÷ 4 × (-2) + 5 – 3 × 4 ÷ 18

⇒ 3/8 – 6 ÷ 4 × (-2) + 5 – 3 × 4 ÷ 18

⇒ 3/8 – 6/4 × (-2) + 5 – 3 × 4 ÷ 18

⇒ 3\8 – (-3) + 5 – 3 × 4 ÷ 18

⇒ 3/8 + 3 + 5 – 3 × 4 ÷ 18

⇒ 3/8 + 3 + 5 – 3 × 4/18

⇒ 3/8 + 3 + 5 – 2/3

⇒ 3/8 + 8 – 2/3

⇒ (9 + 192 – 16)/24

⇒ (201 – 16)/24

⇒ 185/24

⇒ $7\frac{17}{24}$

∴ The required value is $7\frac{17}{24}$

Given:

sinθ = 11/15

Formula used:

b² = √(h² – p²)

sinθ = p/h

secθ = h/b

tanθ = p/b

Calculation:

We know that,

sinθ = p/h = 11/15

b² = (h2 – p2)

⇒ b² = ((15)2 – (11)2)

⇒ b² = (225 – 121)

⇒ b² = 104

⇒ b = 2√26

secθ = h/b = 15/2√26

tanθ = p/b = 11/2√26

 (sec θ –  tan θ) = (15/2√26 – 11/2√26)

⇒ 4/2√26

⇒ 2/√26

Multiplying numerator and denominator by √26 we get,

⇒ (2/√26 × √26/√26)

⇒ (2√26)/26

⇒ √26/13

∴ Required value is $\frac{\sqrt{26}}{13}$

Given:

$\frac{(1+\cos θ)(cosec θ-\cot θ)\sec θ}{\sin θ(1-\sinθ)(\sec θ+\tan θ)}=?$

Formula used:

cosecθ = 1/sinθ 

secθ = 1/cosθ 

cotθ = cosθ/sinθ

tanθ = sinθ/cosθ 

1 – cos²θ = sin²θ 

1 – sin²θ = cos²θ 

Calculation:

$\frac{(1+\cos θ)(cosec θ-\cot θ)\sec θ}{\sin θ(1-\sinθ)(\sec θ+\tan θ)}=?$

⇒ [(1 + cosθ)(1/sinθ – cosθ/sinθ) 1/cosθ]/[sinθ(1 – sinθ)(1/cosθ + sinθ/cosθ)]

⇒ [(1 + cosθ)(1 – cosθ/sinθ) 1/cosθ]/[sinθ(1 – sinθ)(1 + sinθ/cosθ)]

⇒ [(1 – cos²θ)/sinθ × 1/cosθ]/[sinθ (1 – sin²θ)/cosθ]

⇒ (sin²θ/sinθ × 1/cosθ)/(sinθ × cos²θ/cosθ)

⇒ (sinθ/cosθ)/(sinθ × cosθ)

⇒ 1/cos²θ 

⇒ sec²θ 

∴ The value of ? is sec²θ

Given:

The average weight of some students = 58 kg

Weight of 8 students who leave the group = 54 kg

Number of three students who joined the group = 53.6, 54 and 57.4 kg

Average weight of the remaining students increase = 575 g

Formula used:

Average = sum of observations/Number of observations

Calculation:

Let the number of students be x

According to the question

⇒ [(58 × x) –  (8 × 54) + (53.6 + 54 + 57.4)] = (x – 8 + 3) (58 + 0.575)

⇒ 58x – 432 + 165 = (x – 5) (58.575)

⇒ 58x – 267 = (58.575x – 292.875)

⇒ (58.575x – 58x) = (292.875 – 267)

⇒ 0.575x = 25.875

⇒ x = (25.875/0.575)

⇒ x = 45

∴ The number of the students in the group is 45

Given:

$x + \frac{1}{x}=√{7}$

Calculation:

$(x^2 + 1)÷\left[x^4+\left(\frac{1}{x^2}\right)\right]$           

Dividing by x we get,

⇒ (x² + 1)/x ÷ [x⁴ + (1/x²)/x]

⇒ (x + 1/x)/(x³ + 1/x³)......(1)

If (x + 1/x) = √7

Then,

(x³ + 1/x³) = [(√7)³ – 3√ 7]

Putting the value of x + 1/x in equation (1) we get, 

⇒ (√7)/(7√7 – 3√ 7)

⇒ √7/4√7

⇒ 1/4

∴ The required value is $\frac{1}{4}$

Calculation:

Total number of computers of type A sold in January and May = (250 + 350)

⇒ 600

Total number of computers of type B sold from March to May = (350 + 325 + 425)

⇒ 1100

Required percentage = [(1100 – 600)/1100 × 100]

⇒ (500/1100 × 100)

⇒ 45.5%

∴ The required percentage is 45.5

Given:

Cost price of an article = Rs. 480

Profit = 17%

Discount = 10%

Formula used:

Marked price = [(100 + Profit)/(100 – Discount) × CP]

Calculation:

According to the question

Marked price = [(100 + Profit)/(100 – Discount) × CP]

Marked price = [(100 + 17)/(100 – 10) × 480]

⇒ (117/90 × 480)

⇒ (56,160/90)

⇒ Rs. 624

∴ The value of marked price of an article is 624

Shortcut Trick Let the starting price be 100 units.

Price after one year = 100 + 5 = 105 units

Price after second year = 105 + (105 × 5)/100 = 110.25 units

Price after third year = 110.25 + (110.25 × 5)/100 = 115.7625 units

According to the question,

115.7625 - 110.2500 = 52.50

⇒ 5.5125 units = 52.50

⇒ 1 unit = 9.5238

⇒ 100 units = 952.38

⇒ 105 units = 1000

Alternate MethodGiven:

The price of an article increases = 5%

The difference between its price at the end of the second and third year = Rs. 52.50

Calculation:

Let the initial price be 10000x

Price at the end of the first year = (10000x × 105/100) = 10500x

Price at the end of the second year = (10500x × 105/100) = 11025x

Price at the end of the third year = (11025x × 105/100) = 11576.25x

According to the question

⇒ 11576.25x – 11025x = 52.50

⇒ 551.25x = 52.50

⇒ x = 52.50/551.25

⇒ x = 0.0952

Price at the end of the first year = 10500x = (10500 × 0.0952)

⇒ Rs. 999.6 ~ Rs. 1000

∴ Required first year price is Rs. 1000.

Given:

Cost price of goods = Rs. 8000

Formula used:

Profit = SP – CP

Profit% = Profit/CP × 100

Calculation:

According to the question

30%of goods = (8000 × 30/100)

⇒ Rs. 2400

Profit = 12%

SP = (2400 × 112/100)

⇒ Rs. 2688

CP of 40% of remaining goods = (8000 – 2400) = Rs. 5600

⇒ (5600 × 40/100)

⇒ Rs. 2240

CP of 40% of remaining goods = Rs. 2240

Profit = 25%

SP = (2240 × 125/100)

⇒ Rs. 2800

He has to gain 30% on whole transaction

SP = (8000 × 130/100)

⇒ Rs. 10400

CP left = [8000 – (2400 + 2240)

⇒ (8000 – 4640)

⇒ Rs. 3360

SP left = [10400 – (2688 + 2800)]

⇒ (10400 – 5488)

⇒ Rs. 4912

Profit ended on remaining goods = Rs. (4912 – 3360)

⇒ Rs. 1552

Profit% = (1552/3360 × 100)

⇒ Rs.(155,200/3360)

⇒ 46.2%

∴ Required profit percentage is 46.2%

Calculation:

Total revenue of company in 2015 and 2018 = (350 + 280)

⇒ 630

Total expenditure in 2017 and 2018 = (360 + 180)

⇒ 540

Required ratio = (630 : 540)

⇒ 7 : 6

∴ Required ratio is 7 : 6

Given:

The six digit numbers = 537xy5

Concept used:

Divisibility rule of 125: The number formed by the hundred, tens and units digit of the number must be divisible by 125

Calculation:

If we multiply last 3 digit number with the even number i.e. 2, 4, 6 and 8 we get 0 at the last digit

which is not possible. 

So, we can multiply last three digit number by odd number 

We need the last digit to be 5

⇒ 125 × 1 = 125 (acceptable)

⇒ 125 × 2 = 250

⇒ 125 × 3 = 375 (acceptable)

⇒ 125 × 4 = 500

⇒ 125 × 5 = 625 (acceptable)

⇒ 125 × 6 = 750

⇒ 125 × 7 = 875 (acceptable)

⇒ 125 × 8 = 1000

We cannot multiply (125 × 9 = 1125) because it has three-digit units

So,

⇒ 12, 37, 62, 87 are the 4 values of x and y that are the possible cases

∴ There are 4 such digit six-digit numbers

The correct answer is Pyrometer.

Key Points 

• A pyrometer is a sort of remote-sensing thermometer that measures the temperature of things that are far away.
• Pyrometers have appeared in many forms throughout history.
• It can be used for measuring and monitoring temperatures and hot spots of jet engine rotor blades.
• It is a device that determines the temperature of a surface from a distance based on the quantity of thermal radiation it produces, a process known as pyrometry and sometimes radiometry.
• The majority of pyrometers work by detecting radiation from the body being measured.
• It is founded on the idea that the intensity of light received by the observer is proportional to the distance between the observer and the distant source's temperature.
• A modern pyrometer consists of an optical system and a detector.

Additional Information 

• A hygrometer is a device that measures the amount of water vapour present in the air, soil, or restricted places.
• An ammeter is a device that measures the current flowing through a circuit.
• A Machmeter is a flight instrument in an aircraft's pitot-static system that displays the ratio of true airspeed to sound speed, a dimensionless quantity known as Mach number.

The correct answer is 9**.**

Key Points

• New Development Bank (NDB) is a multilateral development bank established in 2014.
• It is formerly referred to as the BRICS Development Bank.
• New Development Bank was established by the BRICS states.
• New Development Bank consists of 9 member countries.
• In July 2015, the New Development Bank Agreement came into force with the official declaration of all five states who signed it.
• Through loans, guarantees, equity participation, and other financial instruments, the Bank will support public and private projects.

Important Points

• Brazil, Russia, India, China, and South Africa are among the Bank's five founding members. and Recently 4 new members joined BRICS. Those are Bangladesh, UAE, Uruguay, Egypt.
• The headquarters of the New Development Bank is located in Shanghai, China.
• The National Development Bank's first regional office is in Johannesburg, South Africa.
• In 2019, So Paulo, Brazil, became the second regional office, followed by Moscow, Russia.
• As of November 2021, Marcos Troyjo is the President of the New Development Bank (NDB).
• India suggested the establishment of the bank at the 4^th BRICS meeting in Delhi in 2012.
• India's K. V. Kamath is the NDB's first elected president.

The correct answer is Haryana.

Key Points

• The 4^th edition of the Khelo India Youth Games will be held in Haryana.
• The Games will be held in Panchkula.
• The Haryana government has decided to organise the Khelo India Youth Games in February 2022, in view of the possible third wave of the Covid-19 pandemic.
• Gatka, Kalaripayattu, Thang-Ta, and Mallakhamba, four indigenous games were added in December 2020.
• Haryana came second in both Khelo India Youth Games 2019 and 2020 editions (200 medals in 2020 and 159 medals in 2019).

Additional Information

• The Khelo India Youth Games are an annual multidisciplinary grassroots game organised at a national level in India in January or February.
• Previously known as Khelo India School Games (KISG).
• It is held for two groups of students: under-17-year-olds in high school and under-21-year-olds in college.
• Every year, the top 1,000 children will be awarded a 5-lakh annual scholarship for the next eight years in order to prepare them for international sporting events.
• The first edition of the Khelo India Youth Games was held in Delhi in 2018.
• The second edition of the Khelo India Youth Games was held in Pune in 2019.
• The third edition of the Khelo India Youth Games was held in Guwahati in 2020.

The correct answer is Khushi Chindaliya.

Key Points

• As of December 2020, Khushi Chindaliya was appointed as Regional Ambassador for India by the United Nations Environment Programme (UNEP).
• Khushi Chindaliya was a 17-year-old girl from Surat, Gujarat.
• She intends to raise awareness about climate change, the necessity of environmental protection, and the need to protect natural resources.
• Until February 2021, she will collaborate with the United Nations Environment Programme (UNEP)- Tunza Eco-Generation on several environmental awareness programmes.
• Khushi is one of 100 young Indians whose articles were selected by UNESCO for publication in a book titled "Year 1 AC (After Coronavirus): Essays by 100 Young Indians."
• In 2019, she was inducted as a member and worldwide ambassador of the National Society of High School Scholars, an international organisation administered by Sir Alfred Nobel's descendants.

Important Points

• The United Nations Environment Programme (UNEP) is in charge of organising the UN system's response to environmental challenges.
• After the United Nations Conference on the Human Environment in Stockholm in June 1972, it was founded by Maurice Strong, its first director.
• The Headquarters of the United Nations Environment Programme is located in Nairobi, Kenya.

Additional Information

• Dia Mirza was appointed brand ambassador for the Wildlife Trust of India on World Environment Day 2017.
• Akshay Kumar is the brand ambassador for the Union Ministry of Road Transport and Highway’s Road Safety campaigns.
• Virat Kohli was appointed as the brand ambassador of the London-based social networking startup 'Sport Convo' in late 2014.

The correct answer is 1950.

Key Points

• The Supreme Court of India is the country's highest judicial court, according to the Indian Constitution.
• The Supreme Court is established and constituted according to Article 124.
• The Supreme Court is the highest court in the country's judicial system.
• The King of England's Regulating Act of 1773 cleared the stage for the formation of the Supreme Court of Judicature in Calcutta.
• The Supreme Court of India was established on January 26, 1950.
• It is located in Tilak Marg, New Delhi.

Important Points

• On October 29, 1954, the first President of India, Dr Rajendra Prasad, laid the foundation stone for the Supreme Court Building.
• After its inauguration on January 28, 1950, the Supreme Court commenced its sittings in a part of the Parliament House.
• The Court moved into the present building in 1958.
• Parliament has the authority to increase or decrease the number of judges on the Supreme Court.
• The Supreme Court's strength has increased from 30 to 34 upon the appointment of the new four judges on September 18, 2019.
• The Supreme Court of India is led by the Chief Justice of India.

The correct answer is Virat Kohli.

Key Points

• Virat Kohli is an Indian cricketer who now serves as the Test captain for the Indian cricket team.
• Virat Kohli won the ’Sir Garfield Sobers Award’ for the ICC Male Cricketer of the Decade and ICC Men’s ODI Cricketer of the Decade Award in December 2020.
• He scored 20,396 runs in all international cricket during the time period.
• Virat Kohli was a member of the Indian squad that won the 2011 ICC Cricket World Cup and the 2013 ICC Champions Trophy.
• He was also named ICC Cricketer of the Year in both 2017 and 2018.
• He is the first cricketer to have won the T20 World Cup Player of the Tournament twice.
• In one-day internationals, he has the second-most centuries (43), after only Sachin Tendulkar (49).
• He is the fastest player to reach 10,000 runs in an ODI in terms of innings, taking 54 fewer than the previous record of 259 innings.
• The ICC Decade Awards honour the top players in cricket during the previous ten years.

Additional Information

• The ICC Men's Test Cricketer of the Decade award went to Steve Smith.
• The ICC Spirit of Cricket Award of the Decade went to MS Dhoni.
• Ellyse Perry has been named the International Cricket Council's Women's T20I Cricketer of the Decade.
• Joe Root won the ICC Player of the Month in August 2021.

The correct answer is algorithm.

Key Points

• An algorithm is a finite set of instructions that, if followed, accomplishes a particular task.
• It is the step by step procedure for solving any problem.
• Algorithms are used to specify how calculations, data processing, automated reasoning, automated decision-making, and other tasks should be carried out.
• All algorithms must meet the following requirements:
• The inputs to an algorithm can be zero or more and come from a specific set of objects.
• An algorithm has one or more outputs that are related to the inputs in some way.
• Each step must be properly stated, and each instruction must be concise and clear.
• After a finite number of steps, the algorithm must always end.
• All operations must be sufficiently fundamental to be completed precisely and in a finite amount of time.

The correct answer is Robin Uthappa.

Key Points

• Robin Uthappa is appointed as the brand ambassador of Entri, a local learning app for jobs.
• 'Entri' is a local language learning app for jobs based in Kerala.
• Mohammed Hisamuddin is the founder and Chief Executive Officer of Entri application.
• Entri started in 2017 from Kerala with Malayalam content and has since launched Tamil, Kannada, Telugu, and Hindi content.
• Robin Uthappa is a cricketer from India who represents Kerala in domestic cricket.
• He was a part of the Indian cricket squad that won the ICC World Twenty20 Championship in 2007.
• In the IPL, Robin Uthappa currently plays for Chennai Super Kings.

Additional Information

• Rohit Sharma is the first non-footballer to become the brand ambassador of La Liga in India.
• M C Mary Kom is the brand ambassador of the TRIFED Aadi Mahotsav.
• Sania Mirza was appointed brand ambassador of Telangana in 2014.