SSC CHSL 2020 Official Paper 11 (Held On: 16 April 2021 Shift 2) (Previous Year Paper)

The correct answer is 'Persuit​'.

Key Points 

• Let's discuss the marked option:
• Persuit is incorrectly spelt. The correct spelling is 'Pursuit.
• Pursuit: an activity that you spend time doing, usually when you are not working (एक गतिविधि जिसे करने में आप समय व्यतीत करते हैं, आमतौर पर जब आप काम नहीं कर रहे होते हैं)
• Ex: I enjoy outdoor pursuits, like hiking and riding.

Therefore, the correct answer is option 3).

Additional Information 

• Let's discuss the other words:
• Bleak​: If a place is bleak, it is empty, and not welcoming or attractive (यदि कोई स्थान धूमिल है, तो वह खाली है, और स्वागत योग्य या आकर्षक नहीं है)
• Throttle: a valve which allows more or less fuel to go into an engine and so changes the power with which the engine operates (एक वाल्व जो कम या ज्यादा ईंधन को इंजन में जाने देता है और इसलिए उस शक्ति को बदल देता है जिसके साथ इंजन संचालित होता है
• Ordinance: a law or rule made by a government or authority (सरकार या प्राधिकरण द्वारा बनाया गया कानून या नियम)

The correct answer is- 'BACD.' 

Key Points  

• By reading the above-given para we can understand that the paragraph is about the magic of having faith in one's self.
• Part B will come first, as it introduces the theme of the passage (Magic of belief).
• Part A will come next, as the **conjunction '**that' joins the two sentences and provides more information about the subject (Magic).
• Part C will follow next, as it adds more information about the magic of belief.
• Part D will conclude the passage.
• Thus option 2 is the correct answer.

The correct sequence is: 

B. There is only one magic in life that can help you turn your dreams into reality.

A. That magic is believing in yourself a hundred per cent.

C. You will be able to face life’s challenges with courage only if you believe in yourself and in your capacity to meet those challenges.

D. Therefore, the most important lesson that a family can teach its members is to have this faith in oneself.

Important Points   

• Here are some tips to solve the para jumbles:
• You need to understand the idea behind the paragraph. If you can understand the idea/theme of the paragraph it is easy to put the sentences in order then.
• You should look out for the starting or the concluding sentences in the question. Sometimes they are clearly visible and can help you immensely in identifying the correct sequence.
• You need to know the relationships between different sentences to put them in the right sequence.
• You should first fix the relationships of sentences, put them in order and then check the options.
• Transition words and contrasting words also help in finding clean relationships between sentences of the sentence rearrangement.
• Do not over depend on options, they only confuse you if you keep looking at them, use them as facilitators only, especially to fix your first sentence.
• The whole paragraph should have a coherent idea and flow when arranged in the correct order.

The correct answer is- 'on the condition that he would return.'

Key Points 

• In the given sentence, the helping verb (are) is incorrectly used.
• In conditional sentences where the outcome is unlikely to happen, we use a model auxiliary verb.
• To make this sentence correct replace the helping verb 'are' with 'would.'
• Thus option 1 is the correct answer.

The correct sentence is: Wasim agreed to share his notes with Arif on conditions that he would return them in a day. 

Additional Information 

• Let's understand about zero conditional sentences:
• Zero conditionals are used to express general truth, habit or fact.
• Structure: If + simple present (if-clause) + simple present (main clause)
• Example: If the sun rises (if-clause), we get sunlight (main clause).

The correct answer is- 'BADC.' 

Key Points   

• By reading the above-given para we can understand that the paragraph is about grapes.
• Part B will come first, as it introduces the subject of the paragraph (Grapes).
• Part A will come next, as the pronoun 'it' refers to the noun 'Grapes'.
• Part C will follow D, as D first mentions the leaves and then comes the flowers and fruits in part C.
• Thus option 3 is the correct answer.

The correct sequence is: 

B. The grape is usually a woody vine, climbing by means of tendrils and often reaching a length of 17 metres or more.

A. In arid regions it may form an almost erect shrub.

D. The edible leaves are alternate, palmately lobed and always tooth-edged.​

C. Small greenish flowers, in clusters, precede the fruit, which varies in colour from almost black to green, red and amber.

Important Points   

• Here are some tips to solve the para jumbles:
• You need to understand the idea behind the paragraph. If you can understand the idea/theme of the paragraph it is easy to put the sentences in order then.
• You should look out for the starting or the concluding sentences in the question. Sometimes they are clearly visible and can help you immensely in identifying the correct sequence.
• You need to know the relationships between different sentences to put them in the right sequence.
• You should first fix the relationships of sentences, put them in order and then check the options.
• Transition words and contrasting words also help in finding clean relationships between sentences of the sentence rearrangement.
• Do not over depend on options, they only confuse you if you keep looking at them, use them as facilitators only, especially to fix your first sentence.
• The whole paragraph should have a coherent idea and flow when arranged in the correct order.

The correct answer is- 'offer for their guests.' 

Key Points 

• In the given sentence there is an error of preposition (for).
• The preposition (for) is not required in this sentence after the verb (offer), as 'offer' is acting as a transitive verb in this sentence thus it will take a direct object (guests).
• So to make this sentence correct remove the preposition 'for.'
• Thus option 1 is the correct answer.

The correct sentence is: Most hotels offer their guests complimentary breakfast during their stay there.

Additional Information 

• Let's learn more about transitive and intransitive verbs:
• Transitive verbs: A transitive verb is a verb that can take a direct object, which means the action of the verb is directly done to someone or something.
• Example:
• ​ Ramesh bought for dozens of cakes. (Incorrect sentence, as the verb bought is a transitive verb and takes a direct object.)
• Ramesh bought dozens of cakes. (Correct sentence)
• ​​Intransitive verbs: An intransitive verb is a verb that can not take a direct object, which means the action of the verb is not done or cannot be done directly to someone or something.
• Example: 
• Rohit laughed his younger brother. (Incorrect sentence, as you cannot laugh someone thus it is an intransitive verb)
• Rohi laughed at his younger brother. (Correct sentence)

The correct answer is- 'Netra says, “The flowers look beautiful.”'

Key Points 

• To convert the given sentence into direct speech, 'that' should be removed.
• The statement should be quoted in inverted commas.
• As we know when the reporting speech (Netra says) is in the present tense, there will be no changes in the reported speech.
• So option 1 is the correct answer.

And the direct speech form is: Netra says, “The flowers look beautiful.”  

Additional Information

• When converting from indirect to direct speech, and the reporting speech is in past tense then the tense of reported speech changes as follows:
• Past perfect changes to part simple
• Past perfect continuous changes to part continuous

The correct answer is 'requirements'

Key Points

• Let's explore the options:
• principles​: a basic idea or rule that explains or controls how something happens or works (एक बुनियादी विचार या नियम जो बताता है या नियंत्रित करता है कि कुछ कैसे होता है या काम करता है)
• procurements: the action of obtaining or procuring something. (कुछ प्राप्त करने या प्राप्त करने की क्रिया।)
• advertisement: a picture, short film, song, etc. that tries to persuade people to buy a product or service, or a piece of text that tells people about a job, etc (एक तस्वीर, लघु फिल्म, गीत, आदि जो लोगों को उत्पाद या सेवा खरीदने के लिए मनाने की कोशिश करता है, या पाठ का एक टुकड़ा जो लोगों को नौकरी के बारे में बताता है, आदि।)
• requirements: something that you must do, or something you need (कुछ ऐसा जो आपको करना चाहिए, या कुछ ऐसा जो आपको चाहिए)
• According to the above meanings 'requirements' will be used to make the sentence meaningful.
• Thus, option 4 will be the correct answer.

 

Hence, the correct sentence is: If our product does not meet your requirements, we will refund your payment in full.

The correct answer is- 'Something that is very easy to do' 

Key Points 

• The meaning of the given idiom is:
• Child’s play means it is very easy to do ('यह काम करने के लिए बहुत आसान है')
• Example: He thought the work would be child's play.
• By the above meaning and example, we can say that 'Something that is very easy to do' is the correct answer.

Hence option 4 is the appropriate answer.

The correct answer is- 'No error.'

Key Points 

• The given sentence is grammatically correct and error-free.
• And there is no need for any improvement in this sentence.
• So the correct answer for this question is 'No error.'

Thus option 3 is the correct answer.

Additional Information 

• Let's understand the meaning of Sure.
• The word Sure is an adjective and it means certain or without any doubt.
• Example: I'm sure I left my keys on the table.

The correct answer is 'opening'

Key Points 

• Let's explore the options:
• instance: a particular situation, event, or fact, especially an example of something that happens generally (एक विशेष स्थिति, घटना, या तथ्य, विशेष रूप से किसी ऐसी चीज का उदाहरण जो आम तौर पर होती है)
• opening: an opportunity for employment.
• occasion: a particular time, especially when something happens or has happened (एक विशेष समय, खासकर जब कुछ होता है या हुआ होता है)
• incidence: an event, or the rate at which something happens (एक घटना, या दर जिस पर कुछ होता है)
• According to the above meanings 'opening' will be used to make the sentence meaningful.
• Thus, option 2 will be the correct answer.

 

Hence, the correct sentence is: There is an opening in the advertising company for a copy writer.

The correct answer is 'Exciting​'.

Key Points 

• Bland means 'not having a strong taste or character or not showing any interest or energy.​' (एक मजबूत स्वाद या चरित्र नहीं है या कोई दिलचस्पी या ऊर्जा नहीं दिखा रहा है) 
• Ex: Pop music these days is so bland.
• Marked option 'Exciting' means 'to make someone have strong feelings of happiness and enthusiasm​'. (किसी को खुशी और उत्साह की मजबूत भावनाओं को बनाने के लिए
• Ex: Nothing about my life excites me at present.
• It's clear that 'Bland' and 'Exciting' are opposite in meaning.

Therefore, the correct answer is option 4).

Additional Information 

• Boring: not interesting or exciting (दिलचस्प या रोमांचक नहीं)
• Flimsy: very thin, or easily broken or destroyed (बहुत पतला, या आसानी से टूटा या नष्ट हो गया)
• Weak: not physically strong (शारीरिक रूप से मजबूत नहीं)

The correct answer is- 'The throat of the scooterist has been cut by kite's nylon 'manja' (string).'

Key Points

• To change the given sentence into passive voice, the object (The throat of a scooterist) will be the subject.
• And the auxiliary verb (has) will become 'has been'
• The main verb (cut) will remain in its third form.
• And the subject will act as an object for the new sentence.
• Thus option 3 is the correct answer.

So the passive form will be: The throat of the scooterist has been cut by kite's nylon 'manja' (string).

Additional Information

• Let's understand how the verbs change when converting a sentence from active voice to passive voice.
• Presente simple - is/am/are + verb (3rd from)
• Present contineous - is/am/are + being + verb (3rd from)
• Present perfect - has/have + been + verb (3rd from)

The correct answer is- 'for two hours.'

Key Points

• In the given sentence the preposition (since) is incorrectly used.
• We know that we use since to refer to a point of time. Since can refer to a point after a specific time or event in the past. Or it can refer to a particular point beginning sometime in the past and continuing until the present time.
• But in this question time period is not specific, we use for when we are talking about vague periods of time, like "for the weekend", "for ages" or "for a long time".
• Thus option 3 is the correct answer.

And the correct sentence will be: We have been waiting here for you for two hours.

Additional Information

• Let's learn a simple trick to use 'for' in a sentence:
• for + a period of time (a "period" is a duration of time - five minutes, two weeks, six years)
• Example: Last year, I traveled for three weeks.
• But remember when we use 'since' when:
• since+ last + a period of time 
• Example: He has been playing since last two hours

The correct answer is- 'have everything properly organized' 

Key Points 

• The meaning of the given idiom is:
• Get One’s Ducks in a Row means Complete one's preparations, become efficient and well organized. (किसी चीज़ के लिए एक खाका एक योजना या प्रस्तावों का समूह है जो दर्शाता है कि यह कैसे काम करने की उम्मीद है)
• Example: I'm trying to get my ducks in a row before I go to Europe.
• By the above meaning and example, we can say that 'have everything properly organized​' is the correct answer.

Hence option 1 is the appropriate answer.

The correct answer is 'Fur'

Key Points

• Let us see the meaning of Lint: 
• Lint: short threads that come off the surface of cloth when it is being produced (छोटे धागे जो कपड़े की सतह से निकलते हैं जब इसे बनाया जा रहा है) 
• Example: My black sweater is covered with lint.
• Let us see the meanings of the given options:
• Fur: the skin and hair of an animal that is used for making clothes, etc.; a piece of clothing that is made from this (एक जानवर की त्वचा और बाल जो कपड़े आदि बनाने के लिए उपयोग किया जाता है; कपड़े का एक टुकड़ा जो इससे बनता है)
• Film: a series of moving pictures, usually shown in a cinema or on television and often telling a story (चलती-फिरती तस्वीरों की एक श्रृंखला, जो आमतौर पर सिनेमा या टेलीविजन पर दिखाई जाती है और अक्सर एक कहानी कहती है)
• Copy: to produce something so that it is the same as an original piece of work (किसी चीज़ का उत्पादन करना ताकि वह मूल कृति के समान हो)
• Joint​: belonging to or shared between two or more people (दो या दो से अधिक लोगों से संबंधित या साझा किया गया)
• From the meanings of the given words, we can say that the word 'Fur' is similar in meaning to the option 'Lint'
• Hence, the correct answer is 'Fur'

The correct answer is 'Sorrowful'

Key Points

• Let us see the meaning of Wistful: 
• Wistful: sad and thinking about something that is impossible or in the past (उदास और किसी ऐसी चीज के बारे में सोचना जो असंभव या अतीत में हो) 
• Example: I thought about those days in Spain and grew wistful.
• Let us see the meanings of the given options:
• Happy​: feeling, showing, or causing pleasure or satisfaction (खुशी या संतुष्टि महसूस करना, दिखाना या पैदा करना)
• Shallow: having only a short distance from the top to the bottom (ऊपर से नीचे तक थोड़ी ही दूरी पर होना)
• Contented: happy and satisfied (खुश और संतुष्ट)
• Sorrowful: very sad (बहुत दुख की बात है)
• From the meanings of the given words, we can say that the word 'Sorrowful' is similar in meaning to the option 'Wistful'
• Hence, the correct answer is 'Sorrowful'

The correct answer is 'Geology'.

Key Points 

• Let's explore the options:
• Geology: the study of the rocks and similar substances that make up the earth's surface. (चट्टानों और इसी तरह के पदार्थों का अध्ययन जो पृथ्वी की सतह बनाते हैं)
• Metrology: the scientific study of measurement (माप का वैज्ञानिक अध्ययन)
• Biology: the scientific study of the natural processes of living things (जीवित चीजों की प्राकृतिक प्रक्रियाओं का वैज्ञानिक अध्ययन)
• Zoology: the scientific study of animals, especially their structure. (जानवरों का वैज्ञानिक अध्ययन, विशेष रूप से उनकी संरचना।)
• Thus, from the above meanings correct one-word substitution for the given question is 'Geology'.

The correct answer is 'Heartily'.

Key Points

• Let's explore the options:
• Heartily: enthusiastically, energetically, and often loudly (उत्साह से, ऊर्जावान रूप से, और अक्सर जोर से)
• Feelingly: with deep and sincere emotiont (गहरी और सच्ची भावना के साथ)
• Earnestly: in a serious and determined way, often without humour (एक गंभीर और निर्धारित तरीके से, अक्सर हास्य के बिना)
• Encouragingly: in a way that is encouraging (= making you feel more confident or hope) (एक तरह से जो उत्साहजनक हो (= आपको अधिक आत्मविश्वास या आशा का अनुभव कराता है))
• Thus, from the above meanings correct one-word substitution for the given question is 'Heartily'.

The correct answer is 'Beneficial​'.

Key Points 

• Pernicious (हानिकारक) means 'having a very harmful effect or influence​' (बहुत हानिकारक प्रभाव या प्रभाव होना) 
• Ex: The cuts in government funding have had a pernicious effect on local health services.
• Marked option 'Beneficial​' (फायदेमंद) means 'helpful, useful, or good​'. (उपयोगी या अच्छा)
• Ex: A stay in the country will be beneficial to his health.
• It's clear that 'Pernicious' and 'Beneficial' are opposite in meaning.

Therefore, the correct answer is option 4).

Additional Information

• Nefarious (कुटिल): (especially of activities) morally bad (विशेषकर गतिविधियों का) नैतिक रूप से बुरा)
• Malicious (दुर्भावनापूर्ण): intended to harm or upset other people (अन्य लोगों को नुकसान पहुंचाने या परेशान करने का इरादा है)
• Malcontent (बाग़ी): a person who is not satisfied with the way things are, and who complains a lot and is unreasonable and difficult to deal with (एक व्यक्ति जो चीजों के तरीके से संतुष्ट नहीं है, और जो बहुत शिकायत करता है और अनुचित और मुश्किल से निपटता है)

The correct answer is 'Fraksion'.

Key Points

• Let us explore the options:-
• 'Principle' means a basic idea or rule that explains or controls how something happens or works (एक बुनियादी विचार या नियम जो बताता है या नियंत्रित करता है कि कुछ कैसे होता है या काम करता है
• 'Haunting' means beautiful, but in a sad way and often in a way that cannot be forgotten (सुंदर, लेकिन एक दुखद तरीके से और अक्सर एक तरह से जिसे भुलाया नहीं जा सकता)
• 'Freshen' means to make something cleaner and/or cooler (मतलब कुछ साफ और/या कूलर बनाना)
• 'Fraksion': There is no such word in English, or we can say that there is some spelling mistake in this word.
• ​The correct spelling is 'Fraction' and it means a number that results from dividing one whole number by another. (एक संख्या जो एक पूर्ण संख्या को दूसरे से विभाजित करने के परिणामस्वरूप होती है)

Hence, the correct answer is option 2.

The correct answer is- 'His.'

Key Points 

• In this sentence, the correct option to fill in the blank is 'his,' as this possessive pronoun refers to the noun 'Orson Welles.'
• To show the possession of a masculine noun we use the possessive pronoun 'his.'
• Example: Rohit lives in Delhi and his family lives in Mumbai.
• Thus option 3 is the correct answer.

The complete passage is- In 1938, the famous actor, Orson Welles, terrified New York. (1) his radio play about an invasion of the city by Martians sounded totally real. It sounded so real that many people (2)believed that it was an actual news report. Thousands of people (3)panicked and there was chaos and disorder in the streets of the city for several hours. Today, however, we know that there aren’t any “little green men” on the (4) planet nearest Earth. There was going to be a Martian invasion – only this time it was going to be in the (5) opposite direction.

Additional Information 

• Let's understand the meaning of the word Martians:
• The word Martians is a noun and it means an imaginary creature who is believed to come from Mars.
• Example: There is no evidence about Martians.

The correct answer is- 'believed.'

Key Points 

• In this sentence, the correct option to fill in the blank is 'believed,' as only after believing this news do people start to panic.
• The word believe is a verb and it means to think that something is true, correct, or real.
• Example: He believes that all children are born with equal intelligence.
• Thus option 4 is the correct answer.

The complete passage is- In 1938, the famous actor, Orson Welles, terrified New York. (1) his radio play about an invasion of the city by Martians sounded totally real. It sounded so real that many people (2)believed that it was an actual news report. Thousands of people (3)panicked and there was chaos and disorder in the streets of the city for several hours. Today, however, we know that there aren’t any “little green men” on the (4) planet nearest Earth. There was going to be a Martian invasion – only this time it was going to be in the (5) opposite direction.

Additional Information 

• Let's understand the meaning of the other given word:
• Admitted - Allow to enter
• Refuted - Prove to be false or incorrect
• Disbelieved - Refuse to accept

The correct answer is- 'panicked.'

Key Points 

• In this sentence, the correct option to fill in the blank is 'panicked,' as it fits with the context of the sentence.
• Let's understand the meaning of this word:
• The word panic is a verb and it means to suddenly feel so worried or frightened that you cannot think or behave calmly or reasonably.
• Example: The sound of gunfire panicked the crowd.
• Thus option 3 is the correct answer.

The complete passage is- In 1938, the famous actor, Orson Welles, terrified New York. (1) his radio play about an invasion of the city by Martians sounded totally real. It sounded so real that many people (2)believed that it was an actual news report. Thousands of people (3)panicked and there was chaos and disorder in the streets of the city for several hours. Today, however, we know that there aren’t any “little green men” on the (4) planet nearest Earth. There was going to be a Martian invasion – only this time it was going to be in the (5) opposite direction.

Additional Information  

• Let's understand the meaning of the other given word:
• Stopped - Come to a halt, cease moving
• Shouted - Utter a sudden loud cry
• Jumped - Move suddenly, as if in surprise or alarm

The correct answer is- 'planet.'

Key Points 

• In this sentence, the correct option to fill in the blank is 'planet,' as the sentence talks about Mars which is a planet.
• Let's understand the meaning of this word:
• The word planet is a noun and it means an extremely large, round mass of rock and metal, such as Earth, or of gas, such as Jupiter, that moves in a circular path around the sun or another star*.*
• Example: Might there be intelligent life on other planets?
• Thus option 4 is the correct answer.

The complete passage is- In 1938, the famous actor, Orson Welles, terrified New York. (1) his radio play about an invasion of the city by Martians sounded totally real. It sounded so real that many people (2)believed that it was an actual news report. Thousands of people (3)panicked and there was chaos and disorder in the streets of the city for several hours. Today, however, we know that there aren’t any “little green men” on the (4) planet nearest Earth. There was going to be a Martian invasion – only this time it was going to be in the (5) opposite direction.

Additional Information   

• Let's understand the meaning of the word 'little green men':
• 'Little green men' is the stereotypical portrayal of extraterrestrials as little humanoid-like creatures with green skin and sometimes with antennae on their heads. It is a humorous way to refer to aliens.

The correct answer is- 'opposite.'

Key Points 

• In this sentence, the correct option to fill in the blank is 'opposite,' as it fits the context of the sentence.
• The author says 'invasion in the opposite direction' because today we are developing the technology to reach Mars, sooner or later man will reach Mars.
• And the men on earth would invade Mars before the Martians.
• Thus option 3 is the correct answer.

The complete passage is- In 1938, the famous actor, Orson Welles, terrified New York. (1) his radio play about an invasion of the city by Martians sounded totally real. It sounded so real that many people (2)believed that it was an actual news report. Thousands of people (3)panicked and there was chaos and disorder in the streets of the city for several hours. Today, however, we know that there aren’t any “little green men” on the (4) planet nearest Earth. There was going to be a Martian invasion – only this time it was going to be in the (5) opposite direction.

Additional Information   

• Let's understand the meaning of the given words:
• Difficult - Requiring great physical or mental effort to accomplish
• Same - Closely similar or comparable in kind or quality or quantity or degree
• Opposite - Directly facing each other
• Different - Distinctly separate from the first

The logic followed here is:

Hence, the correct answer is "73".

The logic followed here is:

All the given numbers are the square of prime numbers.

For (169, 289, 361):

Option 1: (529, 841, 961)

Option 2: (441, 529, 625)

Option 3: (256, 324, 484)

Option 4: (225, 324, 441)

Hence, the correct answer is "(529, 841, 961)".

Additional InformationPrime numbers are those number which has only two factors.

Odd numbers are those numbers which are only not divisible by 2. eg. 2 is not odd as it is divisible by 2 but 7 is an odd number as it is not divisible by 2 and leaves remainder 1.

All prime numbers are odd, except the number 2. That is because all prime numbers are numbers that can only be divided evenly by itself and 1.

The pattern followed here is:

1. The shapes rectangle, triangle and oval shift their position by shifting one place to the right as we move along the series.

2. The shaded portion inside the shapes shifts its position by moving one place to the left as we move along the series.

So, the figure that will come next in the series is shown below:

Hence, ‘option 4’ is the correct answer.

Hint

• When an equal digit/letter is on an equal surface, the remaining equal surface are opposite each other.
• When no common numbers/symbols in 2 dices, the equal surface is opposite to each other .

For this question, the relation is given below-

In first and third dice, which is shown above, faces A and B are common, which means E is the face opposite to F.

Hence, ‘F’ is the correct answer.

Additional Information

• Dices are of two types :

1. Standard Dice
2. Non-Standard Dice.

• Dice has:-

1. faces = 6
2. sides = 12
3. corners = 8

• Two opposite faces are never seen together.
• Adjacent faces are never opposite to each other.

Given sequence: Z _ C Y E _ X _ Y _ Z X C _ E

By checking options and substituting accordingly.

1. X Z C E Y → Z X C Y E / Z X C Y E / Z X C Y E

Here Z X C Y E is repeated itself.

2. Z E C X Y → Z Z C Y E / E X C Y X / Z X C Y E
3. C X Y Z E → Z C C Y E / X X Y Y Z / Z X C E E
4. E C Y X Z → Z E C Y E / C X Y Y X / Z X C Z E

• Option (1) gives a pattern of Z X C Y E - Z X C Y E - Z X C Y E.

Hence, ‘X Z C E Y’ is the correct answer.

The option figure contains figure X embedded in its part when rotation is NOT allowed is shown below: 

Hence, 'option 2' is the correct answer.

1. × and –

Given equation: 24 ÷ 4 + 50 – 20 × 6 = 35

After interchanging the symbols, we get:

L.H.S = 24 ÷ 4 + 50 × 20 – 6

= 6 + 50 × 20 – 6

= 6 + 1000 – 6

= 1006 – 6

= 1000 ≠ R.H.S

2. • and –

Given equation: 24 ÷ 4 + 50 – 20 × 6 = 35

After interchanging the symbols, we get:

L.H.S = 24 ÷ 4 - 50 + 20 × 6

= 6 - 50 + 20 × 6

= 6 – 50 + 120

= 126 – 50

= 76 ≠ R.H.S

3. ÷ and –

Given equation: 24 ÷ 4 + 50 – 20 × 6 = 35

After interchanging the symbols, we get:

L.H.S = 24 - 4 + 50 ÷ 20 × 6

= 24 – 4 + 2.5 × 6

= 24 – 4 + 15

= 39 – 4

= 35 = R.H.S

4. ÷ and ×

Given equation: 24 ÷ 4 + 50 – 20 × 6 = 35

After interchanging the symbols, we get:

L.H.S = 24 × 4 + 50 – 20 ÷ 6

= 24 × 4 + 50 – 3.34

= 96 + 50 – 3.34

= 146 – 3.34

= 142.66 ≠ R.H.S

Hence, ‘÷ and –’ is the correct answer.

The logic is:

Farsightedness (hyperopia) is a common vision condition in which you can see distant objects clearly, but objects nearby may be blurry.

Similarly,

Gout is a painful form of arthritis. When your body has extra uric acid, sharp crystals may form in the big toe or other joints, causing episodes of swelling and pain called gout attacks. Gout usually affects the big toe, but it can occur in any joint.

Hence, ‘Joints’ is the correct answer.

Additional InformationHeart: The heart is a muscular organ in most animals, which pumps blood through the blood vessels of the circulatory system. The pumped blood carries oxygen and nutrients to the body, while carrying metabolic waste such as carbon dioxide to the lungs.

Liver: The liver is a large, meaty organ that sits on the right side of the belly. Weighing about 3 pounds, the liver is reddish-brown in color and feels rubbery to the touch. Normally you can't feel the liver, because it's protected by the rib cage. The liver has two large sections, called the right and the left lobes

The pattern followed here is:

According to the alphabetical positions of the letters,

1. SWZDG → S + 4 = W; W + 3 = Z; Z + 4 = D; D + 3 = G 2. JNQUX → J + 4 = N; N + 3 = Q; Q + 4 = U; U + 3 = X 3. MQTXA → M + 4 = Q; Q + 3 = T; T + 4 = X; X + 3 = Z

4. PTXBF → P + 4 = T; T + 4 = X; X + 4 = B; B + 4 = F

Hence, ‘PTXBF’ is the correct answer.

The least possible Venn diagram is:          

Conclusions:

I. All objects are teeth. → False (As, there is no definite relation between objects and teeth. Hence, false)

II. Some colours are teeth. → True (As, Some teeth are colours → Some colours are also teeth)

III. Some objects are colours. → True (As, Some colours are objects → Some objects are also colours)

Hence, Only conclusions II and III follow.

The correct option that indicates the arrangement of the given words in a logical and meaningful order is shown below:

The given terms are names of parts of human body, arranged in the order from head to toe.

5. Thalamus → The thalamus is a small structure within the brain located just above the brain stem between the cerebral cortex and the midbrain and has extensive nerve connections to both. 
6. Eardrum → The eardrum is a thin piece of skin-like tissue that's stretched tight — like a drum — across the opening between the ear canal and the middle ear.
7. Tonsil → The tonsils (palatine tonsils) are a pair of soft tissue masses located at the rear of the throat (pharynx).
8. Naval → The navel (clinically known as the umbilicus, commonly known as the belly button) is a protruding, flat, or hollowed area on the abdomen at the attachment site of the umbilical cord. 
9. Calf muscle → The calf is comprised of two muscles — the gastrocnemius and the soleus. These muscles meet at the Achilles tendon, which attaches directly to the heel. Any leg or foot motion uses these muscles.

Hence, ‘5-3-1-2-4’ is the correct answer.

The logic is:

For "LIABILITY"

 

For "PROCTOR"

 

Similarly,

For "PICTORIAL"

 

Hence, ‘852146509’ is the correct answer.

By using the symbols in the table given below, we can draw the following family tree:

Clearly, Asmit is the brother of Aditya.

Hence, ‘Brother’ is the correct answer.

The logic followed here is:

• Square of any even number - 3 = 1st number.
• Square of any even number - 3 = 2nd number.
• Gap of 2 between both even number.

For 61 : 97

Option 1 → 51 : 57

Option 2 → 39 : 67

Option 3 → 147 : 199

Option 4 → 141 : 193

Hence, "option 4" is the correct answer.

1. Some girls can either be athletes or students.

2. Some students can either be athletes or girls.

3. Some athletes can either be girls or students.

The Venn diagram that best represents the relationship between Girls, Athletes, and Students is shown below:

Hence, ‘option 2’ is the correct answer.

The description is as follows:

 

Hence, ‘Job’ is the odd one out.

The pattern followed here is:

According to the alphabetical positions of the letters,

Similarly,

Hence, ‘JUN’ is the correct answer.

A drum contains 40 litres of milk.

One-fourth of the milk is taken out and replaced with water. 

One-fourth of the milk = 1/4 × 40 litres

One-fourth of the milk = 10 litres

Milk left in drum is = (40 - 10) = 30 litres 

And 10 litres of water was added.

Half of the mixture is taken out and replaced with water. 

Half of 30 litres milk = 1/2 × 30 = 15 litres

And 15 litres of water was added.

The respective quantity of:

Milk left in the drum = (30 - 15) = 15 litres

Water left in the drum = (10 + 15) = 25 litres

Hence, '15 litres and 25 litres’ is the correct answer.

The paper when unfolded will appear as shown below:

Hence, ‘option 1’ is the correct answer.

The pattern followed here is:

According to the alphabetical positions of the letters,

Similarly,

Hence, ‘RHXJX’ is the correct answer.

The number of triangles in the given figure is shown below:

  

  

Hence, ‘10’ is the correct answer.

The logic followed here is:

643, 131 and 557 are the prime numbers and 562 is a non-prime number.

So 562 - option 3 is different from others.

Additional Information

Prime number - The number which is divisible by 1 and itself called a prime number. Exp - 2, 3, 5, 7...

1 is neither a prime nor a composite number.

Hence, "option 3" is the correct answer.

The correct mirror image of the given number cluster when a mirror is placed on its right side is shown below:

Hence, ‘option 1’ is the correct answer.

The logic is:

Cube of (first number - second number) = third number

(14, 11, 27) → 14 - 11 = 3 and 3³ = 27

Similarly,

1. (35, 31, 64) → 35 - 31 = 4 and 4³ = 64

2. (25, 31, 36) → (25 - 31) = -6 and -6² = 36 3. (42, 39, 36) → (42 - 39) = 3 and 3² = 9 4. (19, 11, 46) → (19 - 11) = 8 and 8² = 64

Hence, ‘(35, 31, 64)’ is the correct answer.

The logic is:

Mason : Floor → A mason is a person who is skilled at making things or building things with stone. A mason builds floor.

Similarly,

Carpenter : Door → Carpenter is a person who makes and repairs wooden objects and structures. A carpenter makes door.

Hence, ‘Carpenter : Door’ is the correct answer.

Given:

sin θ = 12/13

Formula:

sin² θ + cos² θ = 1

Calculation:

⇒ cos² θ = 1 - (12/13)² = 25/169

⇒ cos θ = 5/13

⇒ cot θ = cos θ/sin θ = (5/13)/(12/13) = 5/12

Then,

⇒ [(12/13)² - (5/13)²]/[2 × 12/13 × 5/13] × (5/12)²

⇒ [119/169]/[120/169] × 25/144

⇒ 119/120 × 25/144

⇒ 595/3456

∴ $\frac{\sin^2\theta - \cos^2 \theta }{2\cos\theta \sin \theta } \times \cot^2\theta ~$  = 595/3456

Given:

AB = AC

∠BEC = 35° 

Calculation:

⇒ AB = AC

⇒∠ACB = ∠ABC

But, ∠ACB + ∠ACD = 180°   ....(linear angles)

⇒ ∠ACB = 180° - ∠ACD

⇒ ∠ACB = 180° - 2y

⇒ 2x = 180° - 2y

⇒ 2x + 2y = 180°

⇒ x + y = 90°

In ΔBEC, exterior angle equal to sum of exterior angles.

⇒ ∠EBC + ∠BEC = ∠ECD

⇒ x + 35° = y

⇒ y - x = 35°

Solving,

⇒ y = 62.5° and x = 27.5°

∴ ∠ABC = 2x = 2 × 27.5 = 55°

Given:

$(cos^2 θ - 1) (2 sec^2θ ) + sec^2θ + 2tan^2θ = 2$

Formula:

⇒ sin²θ + cos²θ = 1

⇒ 1 + tan²θ = sec²θ

Calculation:

$(cos^2 θ - 1) (2 sec^2θ ) + sec^2θ + 2tan^2θ = 2$

⇒ (-sin²θ).2sec²θ + sec²θ + 2tan²θ = 2

⇒ -2tan²θ + 1 + tan²θ + 2tan²θ = 2

⇒ tan²θ = 1

⇒ tanθ = 1

∴ θ = 45° as 0° < θ < 90°

Then,

 $\dfrac{sec\theta + sin\theta}{cosec \theta - cos \theta }$

⇒ (sec45° + sin45°)/(cosec45° - cos45°)

⇒ (√2 + 1/√2)/(√2 - 1/√2)

⇒ (2 + 2 + 1/2)/(2 - 1/2)

⇒ (9/2)/(3/2)

⇒ 3

∴$\dfrac{sec\theta + sin\theta}{cosec \theta - cos \theta }$ = 3

Given:

∠B = 90°

AC = 10 cm

AD = √55 cm

Calculation:

In right angled triangle ABC,

Using pythagoras theorem,

⇒ AC² = AB² + BC²

In right angled triangle ABD,

⇒ AD² = AB² + BD²

⇒ AD² = AB² + BC²/4   ...(1)

In right angled triangle CBE,

⇒ CE² = BE² + BC²

⇒ CE² = AB²/4 + BC²   ....(2)

Adding 1 and 2,

⇒ AD² + CE² = AB² + BC²/4 + AB²/4 + BC²

⇒ AD² + CE² = 5/4 × (AB² + BC²)

⇒ AD² + CE² = 5/4 × AC²

⇒ CE² = 5/4 × 10² - (√55)²

∴ CE = √70 cm

Calculation:

⇒ 180 × (100 - x)/100 = 60 × (100 + x)/100

⇒ 18000 - 180x = 6000 + 60x

⇒ x = 50

But,

⇒ 50% of 410 = 50/100 × 410 = 205

⇒ (50 + 20)% of 210 = 70/100 × 210 = 147

∴ Required percentage = (205 - 147)/147 × 100 = 39.46%

Alternate MethodLet the number men be x.

Number of days in the second case = 54 + 18 = 72

54 × x = 72 × (x - 15)

⇒ 54x = 72x - 1080

⇒ 18x = 1080

⇒ x = 60

Traditional method:

Given:

Certain people can complete work in = 54 days.

Calculation:

Let certain number of people be N.

N people's 1 day's work = 1/54

1 people 1 day's work = 1/54N

For (N - 15) people = work will be completed in 72 days

(N - 15) people's 1 day's work = 1/72

For this case, 1 people 1 day's work = 1/[72(N - 15)]

Then,

⇒ 1/54N = 1/[72(N - 15)]

⇒ 72N - 1080 = 54N

⇒ N = 60

∴ Initially, there are 60 persons.

Alternate MethodThe value of a, b and c will be calculated as following -

See the expression in right hand side. Divide the respective factors by 2.

⇒ a = factor of a in right hand side/2 = 2/2 = 1

⇒ 4b = -4/2 ⇒ 2b = -1 ⇒ b = -1/2

⇒ 25c = 40/2 = 20 ⇒ c = 4/5

Now,

⇒ a + 2b + 5c

⇒ 1 - 1 + 4 = 4

∴ (a + 2b + 5c) = 4

Traditional method:

Given:

a² + 4b² + 25c² + 18 = 2 (a - 2b + 20c)

Formula:

a² + b² + c² = (a + b + c)² - 2(ab + bc + ac)

Calculation:

⇒ a² + 4b² + 25c² + 18 = 2(a - 2b + 20c)

⇒ a² + 4b² + 25c² - 2a + 4b - 40c + 18 = 0

⇒ (a² - 2a + 1) + (4b² + 4b + 1) + (25c² - 40c + 16) = 0

⇒ (a - 1)² + (2b + 1)² + (5c - 4)² = 0

a - 1 = 0, 2b + 1 = 0, 5c - 4 = 0

a = 1, b = -1/2 and c = 4/5

Then,

⇒ ? = a + 2b + 5c

⇒ ? = 1 - 1 + 4 = 4

∴ (a + 2b + 5c) = 4

Given:

x + y + z = 4, xy + yz + zx = 1 and x³ + y³ + z³ = 34

Formula:

a³ + b³ + c³ - 3abc= (a + b + c)((a + b + c)² - 3(ab + bc + ca))

Calculation:

⇒ x³ + y³ + z³ - 3xyz = (x + y + z)((x + y + z)² - 3(xy + yz + xz))

⇒ 34 - 3xyz = 4 × (16 - 3)

⇒ 3xyz = 34 - 52

⇒ 3xyz = -18

⇒ xyz = -6

∴ 2xyz = -6 × 2 = -12

Shortcut TrickSolve it by unit digit.

Unit digit of average is 1. The unit digit of the sum = 1 × 5 = 5

⇒ 5 + 5 + 5 + x + 6 = 5

⇒ Unit digit of 21 + x = 5

⇒ 1 + x = 5

⇒ x = 4

Then,

Total sum of x - 1, x - 3, x + 3 and  x + 5 = (4 - 1) + (4 - 3) + (4 + 3) + (4 + 5) = 3 + 1 + 7 + 9 = 20

∴ Average of x - 1, x - 3, x + 3 and  x + 5 = 20/4 = 5

Traditional method:

Given:

Average of 335, 2x5, x35, 63x and 406 = 411

Formula:

Average = (Sum of terms)/(Number of terms)

Calculation:

Total of 335, 2x5, x35, 63x and 406 numbers = 411 × 5 = 2055

⇒ 335 + 2x5 + x35 + 63x + 406 = 2055

⇒ 300 + 30 + 5 + 200 + 10x + 5 + 100x + 30 + 5 + 600 + 30 + x + 400 + 0 + 6 = 2055

⇒ 1611 + 111x = 2055

⇒ x = 4

Then,

Total sum of x - 1, x - 3, x + 3 and  x + 5 = (4 - 1) + (4 - 3) + (4 + 3) + (4 + 5) = 3 + 1 + 7 + 9 = 20

∴ Average of x - 1, x - 3, x + 3 and  x + 5 = 20/4 = 5

Alternate MethodLet the speed of boat and current be a and b.

⇒ a - b = 55/5 = 11 km/hr

⇒ a + b = 75/3 = 25 km/hr

⇒ 2a = 36 km/hr

⇒ a = 18 km/hr

Time = 96/18 = 5 hours 20 minutes

∴ The required time is 5 hours 20 minutes.

Traditional method:

Given:

Upstream speed = 55/5 = 11kmph

Downstream speed = 75/3 = 25 kmph

Formula:

Speed of boat in still water = 1/2 × (downstream speed + upstream speed)

Calculation:

Speed of boat in still water = 1/2 × (25 + 11) = 18 kmph

Distance = 96 km

Time taken by boat in still water = 96/18 = 5 hours + 6/18 × 60 minute = 5 hours + 20 minutes

∴ Time taken to row in still water is 5 hours and 20 minutes.

Given:

Sides of triangular field = 96m, 110m and 146m

Formula:

Area of triangle = √[s(s - a)(s - b)(s - c)

where s = (a + b + c)/2

Area of rectangle = length × breadth

Calculation:

s for triangular field = (96 + 110 + 146)/2 = 176m

Area of triangular field = √[176 × (176 - 96)(176 - 110)(176 - 146)] = √[176 × 80 × 66 × 30] = 5280 sq.m

Area of rectangular field = 5280 sq.m

Let length and breadth of rectangular field be 3a and 2a respectively.

⇒ 3a × 2a = 5280

⇒ a = 4√55 m

Length and breadth of rectangular field = 12√55m and 8√55m respectively.

∴ Perimeter of rectangular field = 2 × (12√55 + 8√55) = 40√55 m

Alternate Method

Given:

Sides of triangular field = 96m, 110m and 146m

Formula:

Area of right triangle = 1/2 × base × height

Area of rectangle = length × breadth

Calculation:

Using Pythagoras theorem,

⇒ 146² = 96² + 110²

Then, triangle is right angled triangle.

Area of triangular field = 1/2 × 96 × 110 = 5280 m²

Area of rectangular field = 5280 m²

Let length and breadth of rectangular field be 3a and 2a respectively.

⇒ 3a × 2a = 5280

⇒ a = 4√55 m

Length and breadth of rectangular field = 12√55m and 8√55m respectively.

∴ Perimeter of rectangular field = 2 × (12√55 + 8√55) = 40√55 m

Given:

∠ADB = 25

Calculation:

In OADB,

⇒ ∠O + ∠A + ∠D + ∠B = 360

⇒ ∠O = 360° - 90° - 90° - 25° = 155°

The angle subtended by the arc AB at the centre of the circle is twice that subtended on circumference.

Let P be the point on major arc.

⇒ ∠O = 2∠APB

⇒ ∠APB = 77.5°

Then,

PACB is a cyclic quadrilateral.

⇒∠APB + ∠ACB = 180°

∴ ∠ACB = 180° - 77.5° = 102.5°

Given:

? = $\left(5\dfrac{5}{6}÷ 3\dfrac{1}{2} of \dfrac{10}{21}\right) ÷ \left(\dfrac{3}{4} ÷ 1\dfrac{1}{2} of \dfrac{4}{5} - \dfrac{4}{5} × \dfrac{1}{2}\right) of \dfrac{35}{18}$

Concept:

Calculation:

⇒ $\left(5\dfrac{5}{6}÷ 3\dfrac{1}{2} of \dfrac{10}{21}\right) ÷ \left(\dfrac{3}{4} ÷ 1\dfrac{1}{2} of \dfrac{4}{5} - \dfrac{4}{5} × \dfrac{1}{2}\right) of \dfrac{35}{18} ~$

⇒ (35/6 ÷ 7/2 × 10/21) ÷ (3/4 ÷ 3/2 × 4/5 - 4/5 × 1/2) × 35/18

⇒ (7/2) ÷ (5/8 - 4/10) × 35/18

⇒ 7/2 ÷ 9/40 × 35/18

⇒ 7/2 × 16/7

⇒ 8

∴ $\left(5\dfrac{5}{6}÷ 3\dfrac{1}{2} of \dfrac{10}{21}\right) ÷ \left(\dfrac{3}{4} ÷ 1\dfrac{1}{2} of \dfrac{4}{5} - \dfrac{4}{5} × \dfrac{1}{2}\right) of \dfrac{35}{18} ~$ = 8

Shortcut TrickBy observation:

Option (1) and (2) can't be the answer as the value of cosec θ is always greater and equal to 1 or less and equal to -1.

Let cosec θ = 2, θ = 30° 

Put this value in the equation,

3(sec230  + tan230) = 5,

⇒ 3(4/3 + 1/3) = 5 

⇒ 5 = 5

The equation is satisfied.

∴ The value of cosec θ is 2.

Alternate MethodGiven:

3(sec²θ  + tan²θ) = 5

Formula:

sec²θ = 1 + tan²θ

Calculation:

⇒ 3(sec²θ  + tan²θ) = 5

⇒ 3(1 + tan²θ + tan²θ) = 5

⇒ 3 (1 + 2tan²θ) = 5

⇒ 1 + 2tan2θ = 5/3

⇒ 2tan2θ = 5/3 - 1

⇒ 2tan²θ = 2/3

⇒ tanθ = 1/√3

⇒ θ = 30° as 0° < θ < 90°

Then,

∴ cosec 30° = 2

Calculation:

Total consumption of coffee in state D from 2014 to 2016 = 105 + 140 + 144 = 389 hundred tonnes

Total consumption of coffee in states A, B, C and E in 2015 = 122 + 138 + 150 + 120 = 530 hundred tonnes

∴ Required percentage = (530 - 389)/530 × 100 = 26.70%

Given:

A : B is 5 ∶ 4 and B ∶ C is 3 ∶ 5

Calculation:

We have do B unit equal for both the ratio,

 A : B = 5 : 4

 A : B = 15 : 12 [ multiplied by 3 ]

Then,

B : C = 3 : 5

B : C = 12 : 20 [ multiplied by 4 ]

So, A : B : C = 15 : 12 : 20

∴  A : B : C = 15 : 12 : 20

Concept:

Divisibility test 8 = If the last three digits of a number are divisible by 8, then the number is completely divisible by 8.

Divisibility test 11 = If the difference of the sum of alternative digits of a number is divisible by 11, then that number is divisible by 11 completely.

Calculation:

Number to be divisible by 88 means it should be divisible by both 8 and 11.

From options:

1. 2776408

408 is divisible by 8.

but the difference of the sum of alternative digits of a number is not divisible by 11 so this number is not divisible by 88.

2. 2776400

400 is divisible by 8.

And, the difference of the sum of alternative digits of a number is divisible by 11, so this number is divisible by 88.

3. 2767416

416 is divisible by 8.

but the difference of the sum of alternative digits of a number is not divisible by 11 so this number is not divisible by 88.

4. 2767440

440 is divisible by 8.

but the difference of the sum of alternative digits of a number is not divisible by 11 so this number is not divisible by 88.

∴ 2776400 is divisible by 88.

Shortcut Trick

If x + 1/x = n then x³ + 1/x³ = n³ - 3n

x3 + 1/x3 = n3 - 3n

⇒ 7³ - 7 × 3 

⇒ 322

∴ The required value is 322.

Alternate Method

Given:

x + 1/x = 7

Formula:

(a³ + b³) = (a + b)(a² - ab + b²)

(a + b)² = (a² + b² + 2ab)

Calculation:

⇒ (x + 1/x)² = (x² + 1/x² + 2)

⇒ x² + 1/x² = 49 - 2 = 47

Then,

(x³ + 1/x³) = (x + 1/x)(x² - 1 + 1/x²)

= 7 × (47 - 1)

= 322

∴ (x³ + 1/x³) = 322

Calculation:

Total number of students who scored marks in the class intervals 10 - 15 and 15 - 20 taken together = 7 + 8 = 15

Total number of students who scored marks in the class intervals 5 - 10 and 25 - 30 taken together = 8 + 5 = 13

∴ Required ratio = 15 : 13

Given:

Down payment = Rs.60000

Formula:

Let P = Principal, R = Rate of interest and N = time

Compound interest = P(1 + R/100)ⁿ - P

Calculation:

Amount to be paid in installments = 79860 - 60000 = Rs.19860

Let each installment be of Rs.a

⇒ 19860 = a/(1 + 10/100) + a/(1 + 10/100)² + a/(1 + 10/100)³

⇒ a = 19860 × 1331/3310

⇒ a = 7986

∴ Amount of each installment is Rs.7986.

Given:

Marked price = Rs.300

Three discounts = 20%, x% and 5%

Selling price = Rs.177.84

Calculation:

Discounted price = 300 - 177.84 = Rs.122.16

Single equivalent discount = 100 - 100 × (100 - 20)/100 × (100 - x)/100 × (100 - 5)/100

= 100 - 100 × 80/100 × (100 - x)/100 × 95/100

= 100 - 76 + 0.76x

= 24 + 0.76x

Then,

⇒ 122.16 = 300 × (24 + 0.76x)/100

⇒ 0.76x = 16.72

⇒ x = 22

∴ The value of x is 22.

Alternate MethodCalculation:

So, 

⇒ x : y = 50 : 39

Discount % = (11/50) × 100 = 22%

∴ The correct answer is 22%.

Given:

Profit of one computer on type A = Rs. 2500

Profit of one computer on type B = Rs. 3000

Calculation:

Total sales of type A in February = 180 × 3/20

⇒ 27

Total sales of type B in June = 450 × 1/10

⇒ 45

Total profit = 27 × 2500 + 45 × 3000

⇒ 67,500 + 1,35,000

⇒ Rs. 2,02,500 i.e Rs. 202.5 (in thousands)

∴ Total profit on sale is Rs. 202.5 (in thousands)

No. of computers of type A sold in February = 180

No. of computers of type A sold in April = 275

No. of computers of type A sold in June = 245

Total no. of computers of type A in three months = 180 + 275 + 245

⇒ 700

No. of computers of type B sold in April = 325

No. of computers of type B sold in May = 425

Total no. of computers of type B in two months = 325 + 425

⇒ 750

Ratio = 700 : 750

⇒ 14 : 15

∴ Required ratio of type A and type B computers is 14 : 15

Given:

Profit % = 20%

Formula:

Profit% = (SP - CP)/CP × 100

Calculation:

⇒ 5 × 12 = 60 = 222 × 5 = Rs.1110

⇒ 6 × 10 = 60 = 225 × 6 = Rs.1350

Total number of Notebook = 120

Total cost price of all Notebook = 1110 + 1350 = Rs.2460

Then,

⇒ 20 = (SP - 2460)/2460 × 100

⇒ SP = 2952

The selling price of 120 Notebooks = 2952

Selling price of 1 Notebook = 2952/120 = Rs.24.6

∴ Selling price of 15 Notebook = 24.6 × 15 = Rs.369

 

Alternate MethodGiven the price of 1st notebook = 222 for 12 

Price of one notebook = 18.5 Rs

Given the price of 2nd notebook = 225 for 10

Price of one notebook = 22.5 Rs

Since the number of notebooks purchased is  fixed thus

Average cost price will be = (18.5 +22.5)/2 = 20.5

Since it is making a profit of 20% 

thus selling price of each notebook will be

1.2CP = 1.2 × 20.5 = Rs 24.6

thus selling price of 15 notebooks will be = 15 × 24.6 = 369

Given:

PQRS is a cyclic quadrilateral.

Calculation:

⇒ ∠P + ∠R = 180°

⇒ ∠4R + ∠R = 180°

⇒ ∠R = 36°

⇒ ∠P = 144°

Then,

⇒ ∠Q + ∠S = 180°

⇒ ∠Q + ∠3Q = 180°

⇒ ∠Q = 45°

⇒ ∠S = 135°

∴ ∠S + ∠R = 135° + 36° = 171°

The correct answer is Copper.

Key Points

• Copper reacts with moist air and slowly loses its shiny brown surface and gains a green coat (or another colour depending on which component of air it reacts with).
• This process is called corrosion, which is a process that occurs when a metal is attacked by substances around it such as air, moisture, acids, etc.
• Copper
• Copper is a chemical element with the symbol Cu
• Its atomic number is 29.
• Copper is used as a conductor of heat and electricity.
• It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity.
• Copper is one of the few metals that can occur in nature in a directly usable metallic form.

Additional Information

• Silver
• Silver is a chemical element with the symbol Ag.
• Its atomic number is 47.
• It is a soft, white lustrous transition metal.
• Most silver is produced as a byproduct of copper, gold, lead, and zinc refining.
• Zinc
• Zinc is a chemical element with the symbol Zn.
• Its atomic number is 30.
• Zinc is a slightly brittle metal at room temperature and has silvery-greyish.
• Zinc is refined by froth flotation of the ore, roasting, and final extraction using electricity.
• Iron
• Iron is a chemical element with the symbol Fe.
• Its atomic number is 26.
• It is a metal that belongs to the first transition.
• It is the fourth common element in the Earth's crust.

The correct answer is 1971.

Key Points

• On the night of 25th March 1971 Bangladesh get independence from Pakistan.
• Bangladesh Liberation War 
• The Bangladesh Liberation War was a revolution and armed conflict sparked by the rise of the Bengali nationalist and self-determination movement in what was then East Pakistan during the 1971 Bangladesh genocide.
• The war began the Pakistani military junta based in West Pakistan launched Operation Searchlight against the people of East Pakistan on the night of 25 March 1971.
• The language Movement was started in 1948 meant to assert the rights of the Bengali-speaking population of Pakistan and also for the equal status of Bengali with Urdu, which alone was declared as Pakistan's federal language.
• After the general elections in Pakistan in 1970, Mujibur Rahman's Awami League won a clear majority. But the military in Pakistan was opposed to him becoming the country's supremo.
• The military government of Yahya Khan was unwilling to give up power to Mujib Bengali nationalism was on the rise.
• On the night of 25th March 1971, the Pakistani army started the now-infamous "Operation Searchlight" in which they killed students, intellectuals, and civilians in Bangladesh. Thousands of Bengali women were raped by the Pakistani army. The idea was to brutally crush the Bengali resistance.
• It commemorates the country's declaration of independence from Pakistan in the early hours of 26 March 1971 by the leader of the Nation Sheikh Mujibur Rahman.

The correct answer is Meira Kumar.

Key Points

• Indian Parliamentary Diplomacy
• Former Lok Sabha speaker Meira Kumar is the author of "Indian Parliamentary Diplomacy- Speaker's Perspective".
• The book features an account of parliamentary diplomacy and its role in furthering foreign policy and strengthening international relations.
• It is also a collection of select speeches and reports by Kumar during her stint as Lok Sabha speaker and as leader of Indian parliamentary delegations at several international fora.
• Meira Kumar
• Meira Kumar is an Indian politician(INC) and former diplomat.
• She was the mInister of Social Justice and Empowerment from 2004 to 2009 and she was the 15th Speaker of Lok Sabha from 2009 to 2014.
• She became just the second woman to be nominated for president of India by a major political bloc when she secured the United Progressive Alliance's nomination in 2017.
• She was also a 5-time Member of Parliament.
• Her book entitled "Indian Parliamentary Diplomacy-Speaker's Perspective" was released on 19 March 2015.

Additional Information

• Om Birla
• Om Birla is an Indian politician.
• He is the 17th and current speaker of the Lok Sabha.
• He belongs to the Bhartiya Janata Party.
• He serves as a Member of Parliament for the Kota-Bundi constituency in Rajasthan.
• He was elected thrice to the assembly of Rajasthan.
• Balram Jhakar
• Balram Jakhar was an Indian politician.
• He served as the Speaker of the Lok Sabha and Governor of Madhya Pradesh.
• He was also the longest-serving Speaker of the Lok Sabha.
• Shivraj Patil
• He is an Indian politician who was the Minister of Home Affairs of India, from 2004 to 2008 and the 10th Speaker of the Lok Sabha from 1991 to 1996.
• He was Governor of the state of Punjab and Administrator of the Union Territory of Chandigarh from 2010 to 2015.
• He was served in the Indira Gandhi and Rajiv Gandhi cabinets as Minister of Defence during the 1980s.

The correct answer is Kathakali.

Key Points

• Kottakkal Sivaraman
• Kottakkal Sivaraman was a performing artist.
• He revolutionized the portrayal of female roles in Kathakali, the classical dance-drama from Kerala in southern India.
• Kathakali
• The classical dance form Kathakali originates primarily from the Indian state of Kerala.
• Kathakali is a blend of dance, music, and acting and dramatizes stories, which are mostly adapted from the Indian epics.
• The dancer expresses himself through codified hasta mudras and facial expressions, closely following the verses that are sung.
• The characters in a kathakali performance are broadly divided into Satvika, Rajasika, and Tamika.

Additional Information

• Odissi
• Odissi is a dance form from the state of Odisha in eastern India.
• It is recognized as one of the eight classical dance forms of India.
• Mohiniyattam
• Mohiniyattam is an Indian classical dance form that evolved in the state of Kerala, India.
• It is counted among the two popular dance arts of the state, the other being kathakali.
• Mohiniyattam literally interpreted as the dance of 'Mohini', the celestial enchantress of the Hindu mythology,
• Bharatanatyam
• Bharatanatyam is a pre-eminent Indian classical dance form presumably the oldest classical dance heritage of India is regarded as the mother of many other Indian classical dance forms.
• It is initiated in the Hindu temples of Tamil Nadu and eventually flourished in South India.

The correct answer is Haridwar.

Key Points

• Kumbh Mela 2021 was organized at Haridwar, Uttarakhand.
• Kumbh Mela 2021 was held for only 30 days, from April 1 to 30 this year in view of the COVID-19 pandemic.
• Kumbh Mela
• Kumbh Mela is a religious festival that is celebrated four times over the course of 12 years, the site of the observance rotating between four pilgrimage places on four sacred rivers at Haridwar on the Ganges River, at Ujjain on the Shipra, at Nashik on the Godavari, and at Prayagraj.
• The festival is traditionally credited to the 8th century Hindu Philosopher and saint Adi Shankara.
• It is considered the "World's largest congregation of religious pilgrims".
• It has been inscribed on the UNESCO'sRepresentative List of Intangible Cultural Heritage of Humanity.
• The Kumbh Mela authorities said that the largest one-day attendance at the Kumbh Mela was 30 million on 10 February 2013.

The correct answer is Diabetes.

Key Points

• Hygiene
• Hygiene is a series of practices performed to preserve health.
• Hygiene refers to conditions and practices that help to maintain health and prevent the spread of diseases.
• Personal refers to maintaining the body's cleanliness.
• Diabetes
• Diabetes is a disease that occurs when your blood sugar is too high.
• Blood Sugar is your main source of energy and comes from the food you eat.
• Insulin, a hormone made by the pancreas helps glucose from food get into your cells to be used for energy.
• Sometimes your body doesn't make enough.
• Diabetes has no cure, you can take steps to manage your diabetes and stay healthy.
• Over time, high blood glucose leads to problems such as heart disease, stroke, kidney disease, eye problems, dental disease, nerve damage, foot problems.

Additional Information

• Trachoma
• Trachoma is a disease of the eye caused by infection with the bacterium Chlamydia trachomatis.
• Blindness from trachoma is irreversible.
• It is a public health problem in 44 countries and is responsible for the blindness or visual impairment of about 1.9 million people.
• Buruli ulcer
• Buruli ulcer is a disease caused by the bacterium Mycobacterium ulcerans.
• It mainly affects the skin but can also affect the bone.
• Cases are generally seen in the tropics, primarily in West Africa and Australia.
• Infection often leads to ulcers on the arms or legs, which can also destroy skin or soft tissue.
• Schistosomiasis
• Schistosomiasis is a disease caused by parasitic flatworms called schistosomes.
• The urinary tract or the intestines may be infected.
• Symptoms include abdominal pain, diarrhea, bloody stool, or blood in the urine.

The correct answer is Bajrang Punia.

Key Points

• On 10th December 2020 Federation of Indian Commerce and Industry virtually presented India Sports Awards 2020, to sports personalities for their outstanding contributions in the field of sports.
• Wrestler Bajrang Punia and Shooter Elavenil Valarivan received the highest honour "Sportsperson of the Year of Men & Female" Award respectively.
• FICCI (Federation of Indian Chambers of Commerce & Industry)
• The sports awards are an attempt by the industry body, Federation of Indian Commerce and Industry (FICCI) to acknowledge and recognize the contribution of sportspersons and various stakeholders who deliver excellent results throughout the year.
• It is Established in 1927.
• President- Sanjiv Mehta(As of September 2022)
• Headquarter - New Delhi, Delhi
• Bajrang Punia
• Bajrang Punia is an Indian freestyle wrestler.
• He competes in the 65-kg weight category.
• At the 2020 Tokyo Olympics, Punia won a bronze medal by defeating Kazakhstan's Daulet Niyabekov with a wide 8-0 margin.
• Punia is the only Indian wrestler to win 3 medals at the World Wrestling Championship.