SSC CHSL 2020 Official Paper 10 (Held On: 16 April 2021 Shift 1) (Previous Year Paper)

The correct answer is 'Anant said that he was going to walk to the market to check which shops were open.'

Key Points 

• The given sentence is in Direct Speech. As per the question we have to change it into Indirect Speech.
• The process of transformation is as follows:
• In the given sentence the reporting verb has no object. Hence, 'said' will not be changed.
• Comma and inverted commas will be removed.
• The conjunction 'that' will be added.
• 'am going to walk' will be changed into 'was going to walk'.
• 'are open' will be changed into 'were open'.
• Therefore, as per the points mentioned above, we find that the correct answer is Option 2.
  

Correct Sentence: Anant said that he was going to walk to the market to check which shops were open.

Hinglish

• दिया गया वाक्य Direct Speech में है। दिए गए प्रश्न के अनुसार हमें इसे Indirect Speech में बदलना है।
• परिवर्तन की प्रक्���िया इस प्रकार है:
• दिए गए वाक्य में reporting verb का कोई object नहीं है। इसलिए, 'said' नहीं बदला जाएगा।
• अल्पविराम और उल्टे अल्पविराम हटा दिए जाएंगे।
• संयोजन 'that' जोड़ा जाएगा।
• 'am going to walk' को 'was going to walk' में बदल दिया जाएगा।
• 'are open' को 'were open' में बदल दिया जाएगा।
• इसलिए, ऊपर वर्णित बिंदुओं के अनुसार, हम पाते हैं कि सही उत्तर विकल्प 2 है।

The correct answer is 'utopia'.

Key Points

• The most appropriate word for the given group of words is 'utopia'.
• It means 'a place or state that exists only in the imagination, where everything is perfect.' (कल्‍पनालोक (कल्‍पना में बना संसार जहाँ सब कुछ आदर्श स्थिति में है), आदर्श-लोक, रामराज्‍य)
• Example: We weren't out to design a contemporary utopia.
• Therefore, as per the points mentioned above, we find that the correct answer is Option 1.
  

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Correct Answer: utopia.

Additional Information

• Let's look at the meaning of other words:

The correct answer is 'reasonable'.

Key Points

• The word 'Inordinate' means 'much greater than usual or expected; excessive.' (सामान्‍य या प्रत्‍याशित से बहुत अधिक, अत्‍यधिक; अमर्यादित)
• The antonyms of the word 'Inordinate' are 'middling, moderate, modest, reasonable, temperate'.
• From the antonyms of the given word, we can say that the word 'Reasonable' is the opposite in meaning.
• The word 'Reasonable' means '(used about prices) not too expensive; as much as is appropriate or fair; moderate. (यथोचित; जितना उचित हो; उदारवादी)

Hence, the correct answer is option 2. Let's see the meaning of other given options:-

Additional Information 

• The synonyms of the word 'Inordinate' are 'baroque, devilish, excessive, exorbitant, extravagant, extreme, fancy, immoderate, insane, intolerable, lavish, overdue, overextravagant, overmuch, overweening, plethoric, steep, stiff, towering, unconscionable, undue, unmerciful'.
• Example of 'Inordinate' in a sentence:
• They spent an inordinate amount of time and money on production.

The correct answer is 'Be extremely expensive'.

Key Points

• The most appropriate meaning of the given idiom 'Cost an arm and a leg' is 'Be extremely expensive'.
• Cost an arm and a leg: be extremely expensive. (बहुत महंगा होना)
• Example: The coat had cost him an arm and a leg.
• Therefore, as per the points mentioned above, we find that the correct answer is Option 4.
  

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Correct Answer: Be extremely expensive.

The correct answer is 'challenge'.

Key Points

• The most appropriate option to fill in the given blank is 'challenge'.
• The word 'challenge' means 'something new and difficult that forces you to make a lot of effort.' (चुनौती)
• Example: The company will have to face many challenges in the coming months.
• In the given sentence, it talks about various new things or problems that people have overcome i.e. poverty, drug addiction, abuse, divorce, mental illness.
• Therefore, as per the points mentioned above, we find that the correct answer is Option 1.
  

Correct Sentence: People have overcome poverty, drug addiction, abuse, divorce, mental illness, and virtually every challenge known to man.

Additional Information

• Let's look at the meaning of other words:

The correct answer is 'something that happens suddenly'.

Key Points

• The most appropriate meaning of the given idiom 'A bolt from the blue' is 'something that happens suddenly'.
• A bolt from the blue: a sudden and unexpected event or piece of news. (आकस्मिक घटना)
• For example, The job came like a bolt from the blue.
• Therefore, as per the points mentioned above, we find that the correct answer is Option 3.
  

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Correct Answer: something that happens suddenly.

The correct answer is 'against'.

Key Points

• The given sentence is grammatically incorrect.
• Here, 'against' should be used instead of 'on'.
• The word 'Insure' is followed by the preposition 'against'.
• The phrase 'Insure against' means 'to make (something bad) less likely to happen usually by planning and preparing'.
• Example: Doctors recommend exercising to insure against health problems.
• The sentence is trying to say that it is wise to protect one's home from fire by planning and preparing.
• Therefore, as per the points mentioned above, we find that the correct answer is Option 4.
  

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Correct Sentence: It is wise to insure one's home against fire.

Hinglish

• दिया गया वाक्य व्याकरण की दृष्टि से गलत है।
• यहाँ 'on' के स्थान पर 'against' का प्रयोग करना चाहिए।
• 'Insure' शब्द के बाद 'against' preposition आता है।
• 'Insure against' वाक्यांश का अर्थ है 'योजना बनाकर और तैयारी करके (कुछ बुरा) होने की संभावना कम करना'।
• Example: Doctors recommend exercising to insure against health problems.
• वाक्य यह कहने की कोशिश कर रहा है कि योजना और तैयारी करके अपने घर को आग से बचाना बुद्धिमानी है।
• इसलिए, ऊपर वर्णित बिंदुओं के अनुसार, हम पाते हैं कि सही उत्तर विकल्प 4 है।

The correct answer is 'BDAC'.

Key Points

• The given sentence is an example of a Para Jumble.
• We know that the first statement of a para jumbled question is usually an independent general statement, a noun, a universal fact, starting of an incident, or it starts with 'most' or 'once'.
• Sentence B in the given question is an independent general statement. It introduces the subject i.e. 'Whale Hunting'.
• Sentence D will be the next sentence because it is referring to 'Whale Hunting' and how it was before modern methods and machines began to be used.
• Sentence A will be the next sentence because it expresses what new methods are being used to hunt a whale.
• Lastly, Sentence C will be used because it is connected to Sentence A. 'These' mentioned in sentence C express the harpoons that have been mentioned in sentence A.
• Thus, the sequence becomes:
• B: Whale hunting is not easy.
• D: It was extremely difficult and risky before modern methods and machines began to be used.
• A: To kill a whale, hunters used spears called harpoons.
• C: These harpoons had very long and strong lines tied to them.
• Therefore, as per the points mentioned above, we find that the correct answer is Option 1.
  

Correct Sequence: Whale hunting is not easy. It was extremely difficult and risky before modern methods and machines began to be used. To kill a whale, hunters used spears called harpoons. These harpoons had very long and strong lines tied to them.

The correct answer is 'who was halted'.

Key Points

• The given sentence is grammatically incorrect.
• Here, 'that was halted' should be used instead of 'who was halted'.
• In the given sentence the relative pronoun 'that' should be used because we know that the relative pronouns 'Who' and 'whom' are used mainly for people.
• Relative pronouns are used at the beginning of an adjective clause (a dependent clause that modifies a noun).
• The three most common relative pronouns are who, which, and that.
• Whereas, 'that' is used for both person and thing.
• ​Example: The piggy bank that was on my desk got broken.
• In the given sentence 'that' is referring back to the 'air travel'.
• Therefore, as per the points mentioned above, we find that the correct answer is Option 1.
  

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Correct Sentence: The government has announced a gradual reboot of air travel that was halted two months ago due to lockdown. 

Hinglish

• दिया गया वाक्य व्याकरण की दृष्टि से गलत है।
• यहाँ 'who was halted' के स्थान पर 'that was halted' का प्रयोग होना चाहिए।
• दिए गए वाक्य में relative pronoun 'that' का प्रयोग किया जाना चाहिए क्योंकि हम जानते हैं कि relative pronouns 'who' और 'whom' मुख्य रूप से लोगों के लिए उपयोग किए जाते हैं।
• Relative Pronouns का प्रयोग adjective clause (एक आश्रित उपवाक्य जो संज्ञा को संशोधित करता है) की शुरुआत में किया जाता है। तीन सबसे आम relative pronoun who, which, and that हैं।
• जबकि, 'that' का प्रयोग व्यक्ति या वस्तु दोनों के लिए किया जाता है।
• ​​Example: The piggy bank that was on my desk got broken.
• दिए गए वाक्य में 'that' वापस 'air travel' की ओर इशारा कर रहा है।
• इसलिए, ऊपर वर्णित बिंदुओं के अनुसार, हम पाते हैं कि सही उत्तर विकल्प 1 है।

The correct answer is 'obsession'.

Key Points

• The most appropriate option to fill in the given blank is 'obsession'.
• The word 'obsession' means 'the state in which you can only think about one person or thing so that you cannot think of anything else.' (मनोग्रस्‍��ता (ऐसी मानसिक सि्‍थति जिसमें केवल एक व्यक्ति या वस्‍तु के विषय में ही सोचा जा सके)
• The given sentence expresses that the craze for taking selfies has increased the amount of thought about oneself.
• If we say that someone has an obsession with themselves, we think they are spending too much time thinking about themselves.
• For Example:
• The tabloid press’s obsession with the sordid details of the affair.
• She cared for him with a devotion bordering on obsession.
• Therefore, as per the points mentioned above, we find that the correct answer is Option 1.
  

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Correct Sentence: The craze for taking selfies has only increased our obsession with our own image.

Additional Information

• Let's look at the meaning of other words:

The correct answer is 'Until I was'.

Key Points

• The given sentence is grammatically incorrect.
• Here, 'I was' should be used instead of 'Until I was'.
• Until is a preposition and a conjunction. Until is often shortened to till or 'til'. Till and 'til' are more informal and we don't usually use them in formal writing.
• In the given sentence 'until' should not be used. Until as a preposition means 'up to (the time that)'.
• Example: We played chess until midnight.
• The use of 'until' and 'still' in the same clause is grammatically incorrect.
• Therefore, as per the points mentioned above, we find that the correct answer is Option 2.
  

Correct Sentence: I was still a little weak, I decided to walk home from the metro station.

Hinglish

• दिया गया वाक्य व्याकरण की दृष्टि से गलत है।
• यहाँ 'Until I was' के स्थान पर 'I was' का प्रयोग होना चाहिए।
• 'Until' एक preposition और एक conjunction है। Till और til अधिक अनौपचारिक हैं और हम आमतौर पर औपचारिक लेखन में उनका उपयोग नहीं करते हैं।
• दिए गए वाक्य में 'until' का प्रयोग नहीं करना चाहिए। 'Until' एक preposition है जिसका अर्थ है '(उस समय तक)'।
• *Example: We played chess until midnight.*​
• एक ही clause में 'until' और 'still' का प्रयोग व्याकरणिक रूप से गलत है।
• इसलिए, ऊपर वर्णित बिंदुओं के अनुसार, हम पाते हैं कि सही उत्तर विकल्प 2 है।

The correct answer is 'CBDA'.

Key Points

• The given sentence is an example of a Para Jumble.
• We know that the first statement of a para jumbled question is usually an independent general statement, a noun, a universal fact, starting of an incident, or it starts with 'most' or 'once'.
• Sentence C in the given question is the starting of an incident and an independent general statement. It talks about a unique movie telling the story of a home.
• Sentence B will be the next sentence because it is further telling about the story.
• Sentence D will be the next sentence because it is connected with Sentence B. It tells about which three decades is Sentence B talking about.
• Lastly, Sentence A will be used because it is connected with Sentence D.
• Thus, the sequence becomes:
• C: 'Gamak Ghar' is a unique movie telling the story of a home.
• B: It is spread over three decades.
• D: These are from 1998 to 2019, wherein the film observes the house age as it is gradually abandoned.
• A: That abandoned house is the childhood home of the director Achal Misra, who recreates it in this semi-autobiographical film.
• Therefore, as per the points mentioned above, we find that the correct answer is Option 1.
  

Correct Sequence: 'Gamak Ghar' is a unique movie telling the story of a home. It is spread over three decades. These are from 1998 to 2019, wherein the film observes the house age as it is gradually abandoned. That abandoned house is the childhood home of the director Achal Misra, who recreates it in this semi-autobiographical film.

The correct answer is 'as much rainfall'.

Key Points

• The given sentence is grammatically incorrect.
• Here, 'as much rainfall' should be used instead of 'much rainfall'.
• We use 'as+ adjective/adverb +as' to make comparisons when the things we are comparing are equal in some way.
• Example: The world’s biggest bull is as big as a small elephant.
• In the given sentence the rainfall of the whole of India is being compared with 'Mawsynram'.
• Therefore, as per the points mentioned above, we find that the correct answer is Option 2.
  

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Correct Sentence: No other place in India gets as much rainfall as Mawsynram.

Hinglish

• दिया गया वाक्य व्याकरण की दृष्टि से गलत है।
• यहाँ 'much rainfall' के स्थान पर 'as much rainfall' का प्रयोग किया जाना चाहिए।
• हम तुलना करने के लिए as + adjective/adverb + as  के रूप में उपयोग करते हैं जब हम जिन चीजों की तुलना कर रहे हैं वे किसी तरह से समान हैं।
• Example: The world’s biggest bull is as big as a small elephant.

दिए गए वाक्य में पूरे भारत की वर्षा की तुलना 'Mawsynram' से की जा रही है।

• इसलिए, ऊपर वर्णित बिंदुओं के अनुसार, हम पाते हैं कि सही उत्तर विकल्प 2 है।

The correct answer is 'Vast valleys can be seen sloping into the distance.'

Key Points

• The given sentence is an example of Active Voice. As per the given question we have to change it into Passive Voice.
• The process of transformation is as follows:
• The subject of the given sentence is 'You'.
• The object of the given sentence is 'Vast valleys'.
• Since modal verb has been used in the active voice, therefore, the passive voice will follow the given structure:
• Active Voice - modal verb*(can)* + V1
• Passive Voice - modal verb*(can)* + be + V3
• Here, 'can see' will be changed into 'can be seen' because in 'active to passive' transformation third form of the verb is used.
• Therefore, as per the points mentioned above, we find that the correct answer is Option 1. 
  

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Correct Sentence: Vast valleys can be seen sloping into the distance.

Hinglish

• दिया गया वाक्य Active Voice का उदाहरण है। दिए गए प्रश्न के अनुसार हमें इसे Passive Voice में बदलना है।
• परिवर्तन की प्रक्रिया इस प्रकार है:
• दिए गए वाक्य का विषय 'You' है।
• दिए गए वाक्य का उद्देश्य 'Vast valleys' है।
• चूँकि सक्रिय स्वर में मोडल क्रिया का प्रयोग किया गया है, इसलिए निष्क्रिय स्वर दिए गए ढांचे का पालन करेगा:
• Active Voice - modal verb*(can)* + V1
• Passive Voice - modal verb*(can)* + be + V3
• यहाँ, 'can see' को 'can be seen' में बदल दिया जाएगा क्योंकि 'active to passive' परिवर्तन में क्रिया के तीसरे रूप का उपयोग किया जाता है।
• इसलिए, ऊपर वर्णित बिंदुओं के अनुसार, हम पाते हैं कि सही उत्तर विकल्प 1 है।

The correct answer is 'Dazzling'.

Key Points

• The word 'Resplendent' means 'having a very bright or beautiful appearance.' (बहुत उज्ज्वल या सुंदर दिखना)
• The synonyms of the word 'Resplendent' are "splendid, magnificent, brilliant, dazzling, glittering, glowing, radiant, gorgeous, transcendent, impressive, imposing, spectacular, striking, stunning, glorious, superb, majestic, great, awe-inspiring".
• From the synonym of the given word, we can say that the word 'Dazzling' is the most similar in meaning.
• The word 'Dazzling' means 'extremely impressive, beautiful, or skillful.' (अत्यंत प्रभावशाली, सुंदर, या कुशल)

Hence, the correct answer is Option 2. Let's see the meaning of other given options:-

Additional Information 

• The antonyms of the word 'Resplendent' are "bad, dark, dull, poor, ugly, cloudy, gloomy, withering".
• Example of 'Resplendent' in a sentence:
• The fields were resplendent with flowers.

The correct answer is 'negligible'.

Key Points

• The most appropriate meaning of the given group of words is 'negligible'.
• It means 'very small and therefore not important.' (नगण्य, उपेक्षणीय)
• For Examples: 
• He is a negligible person in the government.
• *He said that the risks were **negligible.*​
• Therefore, as per the points mentioned above, we find that the correct answer is Option 3.
  

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Correct Answer: negligible.

Additional Information

• Let's look at the meaning of other words given in the options:

The correct answer is 'rifel'.

Key Points

• In the given options 'rifel' is an incorrectly spelled word. Its correct spelling is 'rifle'.
• Let's look at its meaning:
• Rifle: a long gun that you hold against your shoulder to shoot with. (लंबी नली की बंदूक़)
• Example: She threw the rifle to her shoulder and took aim.
• Therefore, as per the points mentioned above, we find that the correct answer is Option 3.
  

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Correct Answer: rifel.

Additional Information 

• Let's look at the meaning of other words given in the Options:

The correct answer is 'headstrong'.

Key Points

• The most appropriate synonym of the given word 'Bull-headed' is 'headstrong'.​
• Bull-headed: determined in an obstinate and unthinking way. (एक अड़ियल और बिना सोचे समझे तरीके से निर्धारित किया गया)
• ​Example: A bullheaded belief that she is right.
• Headstrong: given to resisting control or discipline by others or very determined to do what you want without listening to others (दूसरों की बात सुने बिना आप जो चाहते हैं उसे करने के लिए बहुत दृढ़ संकल्प)
• Therefore, as per the points mentioned above, we find that the correct answer is Option 3.
  

Correct Answer: headstrong.

Additional Information

• Let's look at the meaning of other words:
• Clear-headed: able to think clearly, especially if there is a problem. (स्‍पष्‍ट सोचने में सक्षम)
• Weak-minded: lacking determination, emotional strength, or intellectual capacity. (दृढ़ संकल्प, भावनात्मक शक्ति, या बौद्धिक क्षमता की कमी)
• Muddle-headed: mentally disorganized or confused. (मानसिक रूप से अव्यवस्थित या भ्रमित)

The correct answer is 'mild'.

Key Points

• The word 'Pungent' means '(used about a smell) very strong.' ((गंध) बहुत तीखी)
• The antonyms of the word 'Pungent' are 'bland, mild'.
• From the antonyms of the given word, we can say that the word 'Mild' is the opposite in meaning.
• The word 'Mild' means 'not strong; not very bad.' (नरम; हलका) 
  

Hence, the correct answer is Option 3. Let's see the meaning of other given options:-

Additional Information 

• The synonyms of the word 'Pungent' are 'strong, powerful, pervasive, penetrating, suffocating, stifling, sharp, acrid, acid, sour, biting. stinging, burning, smarting, irritating'.
• Example of 'Pungent' in a sentence:
• He put a tray of garlic bread into the oven and the pungent smell of warming cheese filled the room.

The correct answer is 'acidentaly'.

Key Points

• Among the given options 'acidentaly' is an incorrectly spelled word.
• Its correct spelling is 'accidentally'.
• Accidentally: by chance; inadvertently. (संयोग से; अनजाने में)
• Example: His gun went off accidentally.
• Therefore, as per the points mentioned above, we find that the correct answer is **Option 1.**​

Additional Information

• Let's look at the meaning of other words:

The correct answer is 'studying'.

Key Points

• The given passage is about the ancient Brahmin who lived in Northern India.
• In the first filler, the most appropriate word is 'studying'.
• The word 'studying' means 'to spend time learning about something.' (कुछ सीखने में समय लगाना, अध्ययन या पढ़ाई करना)
• Example: Harish has been studying hard for his exams.
• Therefore, as per the points mentioned above, we find that the correct answer is Option 1.
  

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The complete passage is- Many hundreds of years ago, a Brahmin lived in a town in Northern India. He spent many years (1)studying the ancient books and talking to the learned priests (2)who came to visit the city. After much effort, he (3) obtained the knowledge of a certain spell. He was (4)very proud of this and guarded his secret (5)carefully.

The correct answer is 'who'.

Key Points

• The given passage is about the ancient Brahmin who lived in Northern India.
• The most appropriate relative pronoun to fill in the given blank is 'who'.
• We know that the relative pronoun 'who' is used for 'people'.
• It is used especially in questions as the subject or object of a verb, when asking which person or people, or when asking what someone's name is. 
• Example: I don't know who to ask at the party.
• Therefore, as per the points mentioned above, we find that the correct answer is Option 4.
  

​

The complete passage is- Many hundreds of years ago, a Brahmin lived in a town in Northern India. He spent many years (1)studying the ancient books and talking to the learned priests (2)who came to visit the city. After much effort, he (3) obtained the knowledge of a certain spell. He was (4)very proud of this and guarded his secret (5)carefully.

The correct answer is 'obtained'.

Key Points

• The given passage is about the ancient Brahmin who lived in Northern India.
• In the given filler, the most appropriate word is 'obtained'.
• It means 'to get something, especially by asking for it, buying it, working for it, or producing it from something else.' (प्राप्त करना)
• Example: In the second experiment they obtained a very clear result.
• The given sentence is trying to express that the Brahmin got knowledge of a certain spell after a lot of effort.
• Therefore, as per the points mentioned above, we find that the correct answer is Option 2.
  

​

The complete passage is- Many hundreds of years ago, a Brahmin lived in a town in Northern India. He spent many years (1)studying the ancient books and talking to the learned priests (2)who came to visit the city. After much effort, he (3) obtained the knowledge of a certain spell. He was (4)very proud of this and guarded his secret (5)carefully.

Additional Information

• Let's look at the meaning of other words:

The correct answer is 'very'.

Key Points 

• The given passage is about the ancient Brahmin who lived in Northern India.
• In the given filler, the most appropriate word is 'very'. Because 'very proud' is a phrase.
• It means 'feeling or showing pride.' (गर्व महसूस करना या दिखाना) 
• Example: He is very proud of his skill as a pilot.
• Therefore, as per the points mentioned above, we find that the correct answer is Option 3.
  

​

The complete passage is- Many hundreds of years ago, a Brahmin lived in a town in Northern India. He spent many years (1)studying the ancient books and talking to the learned priests (2)who came to visit the city. After much effort, he (3) obtained the knowledge of a certain spell. He was (4)very proud of this and guarded his secret (5)carefully.

The correct answer is 'carefully'.

Key Points

• The given passage is about the ancient Brahmin who lived in Northern India.
• In the given filler, the most appropriate word is 'carefully'.
• It means 'in a way that deliberately avoids harm or errors; cautiously'. (सावधानी से)
• Example: They must be carefully handled and stored.
• Therefore, as per the points mentioned above, we find that the correct answer is Option 3.
  

​

The complete passage is- Many hundreds of years ago, a Brahmin lived in a town in Northern India. He spent many years (1)studying the ancient books and talking to the learned priests (2)who came to visit the city. After much effort, he (3) obtained the knowledge of a certain spell. He was (4)very proud of this and guarded his secret (5)carefully.

Additional Information

• Let's look at the meaning of other words:

By checking options:

The logic followed here is: last two letters are opposite of first two letters.

(1) DFWU 

(2) KMPN 

 

(3) HJRQ  

(4) ACZX   

Hence, HJRQ is the odd one.

The logic followed here is:

(1st number + 1)² / 2 = 2nd number

For 9 : 50 

(9 + 1)2 / 2 = 102 / 2 = 100 / 2 = 50

Similarly, 

13 : 98 

(13 + 1)2 / 2 = 142 / 2 = 196 / 2 = 98

Hence, the correct answer is "Option 2".

Alternate Method

Given: 9 : 50

The logic followed here is: by multiplying the first number with the closest number to the get the second number as shown below,

9 : 50 → 9 × 5 + 5 = 45 + 5 = 50

By checking options,

(1) 5 : 16 → 5 × 3 + 3 = 15 + 3 = 18 ≠ 16

(2) 13 : 98 → 13 × 7 + 7 = 91 + 7 = 98

(3) 8 : 42 → 8 × 5 + 5 = 40 + 5 = 45 ≠ 42

(4) 11 : 63 → 11 × 5 + 5 = 55 + 5 = 60 ≠ 63

Hence, 13 : 98 is the correct answer.

Given: 

The logic followed here is: let the line PQ be the mirror,

Detailed Explanation:

• The line PQ is the mirror
• The given word "FEDARATION" ends with N. So the mirror image will start with N. ⇒ Option 2 and 4 are eliminated.
• The "E" and the second "A"  in option 1 should be interchanged  ⇒ Option 1 is eliminated.

Hence, option (3) is the correct answer.

The pattern followed here is :

The vowels are coded as their positional value, and the consonants are coded as their opposite positional value.

9 + 5 + 1 + 8 + 15 + 13 = 51

<br>

25 + 1 + 16 + 5 = 47

14 + 1 + 9 + 9 + 2 = 35

Hence, 35 is the correct answer.

Given: 

The logic followed here is:

(1)  

  

  

 is changing its position in each step, i.e., in the upper right corner and lower left corner in the next step with interchanging the position of K and Z in every step.

(2) 

is changing position as first in left side, center, right, then left again and same pattern continues.

(3) 

 is first in lower left side, then in upper left side, then changed its position to lower right side and in last step it is in upper right side.

(4) 

 is changing its position diagonally.

Therefore, by following the above pattern the answer figure should have 

  

  

  in the upper right corner,  

 should be in center, 

 should in lower left side, and 

 should be in lower left side.

Thus, the complete series is as follows:

Hence, option (3) is the correct answer.

The logic followed here is:

All progress, growth, and stride are all synonyms.

Whereas, 

Hindrance is not a synonym of growth.

Hence, hindrance is the odd one.

Important PointsStride means a step or stage in progress towards an aim.

Hindrance means a thing that provides resistance, delay, or obstruction to something or someone.

Given: Famine : Drought

The logic followed here is:

Drought causes Famine.

Similarly,

Hurricane causes Devastation.

Hence, Devastation : Hurricane is the correct answer.

Important PointsFamine means extreme scarcity of food.

Drought means a prolonged period of abnormally low rainfall, leading to a shortage of water.

Devastation means great destruction or damage.

Hurricane means a storm with a violent wind, in particular a tropical cyclone in the Caribbean.

Devotion means love, loyalty, or enthusiasm for a person or activity.

Conquer means overcome and take control of (a place or people) by military force.

The least possible Venn diagram is:

Conclusions:

I. No bulb is a tube → False (as all bulbs are tubes is given)

II. Some tumblers are bulbs → True (as some bulbs are tumblers, implies some tumblers are bulbs too)

Hence, only conclusion II follows.

Additional Information

The logic followed here is:

All the numbers are cubes of some number except 1726.

By checking options:

(1) 1726 → It is not a cube.

(2) 1331 → It is a cube of 11 → 11³

(3) 2744 → It is a cube of 14 → 14³

(4) 2197 → It is a cube of 13 → 13³

Hence, option (1) is the odd one.

Let the unit digit of the two-digit number be y and the tens place digit be x.

Then the two digit number is = 10x + y

By interchanging the digits, we get = 10y + x

Therefore, according to the question,

x + y = 13

And,

10y + x = (10x + y) - 27

9y = 9x - 27

y = x - 3

Substituting the value of y in above equation we get,

x + (x - 3) = 13

2x - 3 = 13 

x = 16 ÷ 2

x = 8

Now, by substituting this value of x, we get

y = 8 - 3

y = 5

Therefore, the two digit original number = 10x + y

= 10 × 8 + 5

= 80 + 5

= 85

Hence, 85 is the correct answer.

Given: 

The logic followed here is: The above given image is hidden as follow:

Hence, option (2) is the correct answer.

Given: 9, 10, 13, 24, 37, 66, 97, ?

The logic followed here is:

Hence, 152 is the correct answer.

The logic followed here is:

Similarly,

Hence, "VYHHMB" is the correct answer.

The logic followed here is:

The paper when unfolded, will look like: 

Hence, option (3) is the correct answer.

From the given information,

(1) Rama is the daughter of Radhika, who is the only daughter-in-law of Rekha.

Here "who" is used for Radhika not Rama. So Radhika is the only daughter-in-law of Rekha. 

(2) Mohan is Rishi’s father and Rekha’s husband, implies Rishi is the son of Rekha and Mohan as Radhika is their only daughter-in-law.

Thus, the final family tree is as follows:

Hence, Rishi is the father of Rama.

Given: 

Logic: If two dice have same face value in given image than their clockwise or anticlockwise wise number are know as opposite numbers in dice.

While moving in clockwise direction from common face (2):

From the both dices:

 

Now, 5 is opposite to 1, thus 5 will be at the top if '1' is at the bottom.

Hence, 5 is the correct answer.

The logic followed here is:

The meaningful order is according to the steps to build a house.

The first step is to laid the foundation of the house.

Then walls are build.

Then roof of the house.

Then floor cementing is done.

Then colour washing.

Then finally decoration of the house is done.

That means the correct sequence is Foundation, Wall, Roof, Floor cementing, Colour wash, and Decoration.

Hence, 4, 2, 5, 6, 1, 3 is the correct answer.

Given: (165, 16, 91)

The logic followed here is:

(165, 16, 91) → $\sqrt{165 + 91} = \sqrt{256} = 16$

By checking options,

(1) (99, 14, 97) → $\sqrt{99 + 97} = \sqrt{196} = 14$

(2) (76, 11, 45) → $\sqrt{76 + 45} = \sqrt{121} = 11$

(3) (85, 13, 59) → $\sqrt{85 + 59} = \sqrt{144} = 12 \neq 13$

(4) (57, 9, 24) → $\sqrt{57 + 24} = \sqrt{81} = 9$

Hence, (85, 13, 59) is the correct answer.

Mistake PointsWe have to find the option that does not follow the same logic that is given in the question.

Given: DOCILE : CDEILO : : LABOUR : ?

The logic followed here is:

Letters are arranged in alphabetical order (A to Z), as shown below,

Similarly,

Hence, ABLORU is the correct answer.

By counting the triangles:

Hence, 23 is the correct answer.

Alternate Method By counting the triangles:

 

The triangles are → ABC, ACD, BCE, CDF, BEG, HEC, GEH, HFI, CFH, IFD, BAD, GBC, GHC, BHC, BHG, HCD, CDI, HID, CIH, BHD, GCI, AHD, AHB → 23

Hence, 23 is the correct answer.

The logic followed here is: 

The tennis players who are either swimmers or rich persons, means common part of circle with rectangles except the common part of all the three figures = 6 + 9 + 5 + 10

= 30

Hence, 30 is the correct answer.

Given: Prism : Glass :: Rope : ?

The logic followed here is:

Prism is made up of Glass.

Similarly,

Rope is made up of Hemp.

Hence, hemp is the correct answer.

Additional Information

1. Hemp Rope is made from hemp fibers. It is a widely used rope for performing many different tasks. Hemp rope applications include climbing, fishing, shipping, and horsemanship.
2. Pulp is a lignocellulosic fibrous material prepared by chemically or mechanically separating cellulose fibers from wood, fiber crops, waste paper, or rags.
3. Ore is natural rock or sediment that contains one or more valuable minerals, typically containing metals, that can be mined, treated and sold at a profit. Ore is extracted from the earth through mining and treated or refined, often via smelting, to extract the valuable metals or minerals.
4. Natural rubber latex is most commonly used to make items like gloves, swim caps, chewing gum, mattresses, catheters, rubber bands, balloons, tennis shoes, and many other sporting goods. Synthetic latexes are common in coatings, like latex paint.

Given: l _ chtlgc _ tlg _ ht _ gc _ tlgch _

By checking options:

(1) hghclt → lhcht / lgcgt / lghht / cgclt / lgcht

(2) ghclht → lgcht / lgcht / lgcht / lgcht / lgcht

(3) hhgclt → lhcht / lgcht / lgght / cgclt / lgcht

(4) ghchlt → lgcht / lgcht / lgcht / hgclt / lgcht

Option (2) gives a pattern of  lgcht / lgcht / lgcht / lgcht / lgcht.

Hence, ghclht is the correct answer.

Given: 110 * 728 * 28 * 15 * 413 = 87

By checking options and substituting the signs accordingly:

(1) +, ÷, ×, − 

We get,

LHS = 110 + 728 ÷ 28 × 15 - 413 

= 110 + 26 × 15 - 413

= 110 + 390 - 413

= 500 - 413 

= 87

LHS = RHS

(2) +, −, ×, ÷

We get,

LHS = 110 + 728 - 28 × 15 ÷ 413 

= 110 + 728 - 28 × 0.036

= 110 + 728 - 1.0164

= 838 - 1.0164

= 836.9836

≠ 87

LHS ≠ RHS

(3) +, ×, −, ÷

We get,

LHS = 110 + 728 × 28 - 15 ÷ 413 

= 110 + 728 × 28 - 0.036

= 110 + 20384 - 0.036

= 20494 - 0.036

= 20493.964

≠ 87

LHS ≠ RHS

(4) +, ×, ÷, −

We get,

LHS = 110 + 728 × 28 ÷ 15 - 413 

= 110 + 728 × 1.867 - 413

= 110 + 1359.176 - 413

= 1469.176 - 413

= 1056.176

≠ 87

LHS ≠ RHS

Hence, +, ÷, ×, − is the correct answer.

Given: {6, 9, 18}

The logic followed here is:

(1st number × 2nd number) ÷ 3 = 3rd number. 

{6, 9, 18} → (6 × 9) ÷ 3 = 54 ÷ 3 = 18

Now, by checking options:

(1) {9, 13, 40} → (9 × 13) ÷ 3 = 117 ÷ 3 = 39 ≠ 40

(2) {12, 18, 52} → (12 × 18) ÷ 3 = 216 ÷ 3 = 72 ≠ 52

(3) {10, 15, 50} → (10 × 15) ÷ 3 = 150 ÷ 3 = 50 

(4) {8, 12, 30} → (8 × 12) ÷ 3 = 96 ÷ 3 = 32 ≠ 30 

Hence, {10, 15, 50} is the correct answer.

Given:

Base of right angled triangle = 40cm

Hypotenuse of right angled triangle = 41cm

Formula:

In Right angled triangle,

Using pythagoras theorem,

⇒ hypotenuse² = base² + height²

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

Perimeter of right angled triangle = base + height + hypotenuse

Calculation:

In given right angled triangle,

⇒ 41² = 40² + height²

⇒ Height = √81 = 9 cm

Area of right angled triangle = 1/2 × 9 × 40 = 180 sq.cm

Perimeter of right angled triangle = 40 + 9 + 41 = 90 cm

∴ Area and perimeter of right angled triangle is 180 sq.cm and 90 cm respectively.

Given:

SP of each article = Rs.620

Profit % = 24%

Loss % = 24%

Formula:

Profit % = (SP - CP)/CP × 100

Loss %  =(CP - SP)/CP × 100

Calculation:

⇒ 24 = (620 - CP)/CP × 100

⇒ CP = Rs.500

Cost price of one article is Rs.500

Then,

⇒ 24 = (CP - 620)/CP × 100

⇒ CP = Rs.815.79

The cost price of the other article is Rs.815.79.

Total cost price of two articles = 500 + 815.79 = Rs.1315.79

Total selling price of two articles = 620 + 620 = Rs.1240

∴ Overall loss % = (1315.79 - 1240)/1315.79 × 100 = 5.76%

Alternate Method 

If the price same, then profit and loss Percent is given then find the directly profit or loss%

x% - y% - xy/100

⇒ 24 - 24 - 24 × 24/100

⇒ - 5.76 

Negative shows the Loss Percent.

Shortcut TrickIf SP is same, Profit and Loss% same, then always result in loss %

⇒ XY/100

⇒ 24 × 24/100 = 5.76% Loss

Given:

7A = 4B = 14C

Calculation:

Let 7A = 4B = 14C = k

A = k/7, B = k/4 and C = k/14

Then,

A : B : C = k/7 : k/4 : k/14

Multiply the above by LCM of 7, 4, and 14 i.e. 28

We get A : B : C = 4k : 7k : 2k

∴ A : B : C = 4 : 7 : 2

Given:

Radius of wheel = 42cm

Number of revolutions = 40

Formula:

Speed = Distance/time

Circumference of circle = 2πr

Calculation:

Circumference of wheel = 2 × 22/7 × 42 = 264 cm

Total distance in 40 revolutions = 40 × 264 = 10560 cm = 0.1056 km

Total time = 25 seconds = 25/3600 hour

Speed = 0.1056/(25/3600) = 15.2 kmph

∴ The speed of the bicycle is 15.2 kmph.

Given:

P can complete five-eighths of work in = 15 days

Q can complete three-fourths of the same work in = 30 days.

Calculation:

P alone can complete work in = 15 × 8/5 = 24 days

Q alone can complete work in = 30 × 4/3 = 40 days

(P + Q)'s 1 day's work = 1/24 + 1/40 = 1/15

(P + Q)'s 8 days work = 8/15

Remaining work after 8 days = 1 - 8/15 = 7/15

Time taken by Q to complete 7/15 of work = 7/15 × 40 = 56/3 days

= 18 days + 2/3 × 24 = 18 days + 16 hours

∴ The time taken by Q alone to complete the remaining work after 8 days is 18 days and 16 hours.

Calculation:

Total value of vehicles manufactured by company A during 2010 - 2015 = 260 + 218 + 224 + 179 + 266 + 348 = 1495

Average value of vehicles manufactured by company A during 2010 - 2015 = 1495/6 = 249.16 (in thousands)

Total value of vehicles manufactured by company B during 2010 - 2015 = 307 + 270 + 250 + 289 + 310 + 416 = 1842

Average value of vehicles manufactured by company B during 2010 - 2015 = 1842/6 = 307 (in thousands)

∴ Required percentage = 249.16/307 × 100 = 81.2%

Given:

? = $\frac{ \sin 33^\circ \cos 57^\circ + \sec 62^\circ \sin 28^\circ + \cos 33^\circ \sin 57^\circ + \rm cosec 62^\circ \cos 28^\circ}{\tan 15^\circ \tan 35^\circ \tan 60^\circ \tan 55^\circ \tan 75^\circ}$

Formula:

sin (90 - θ) = cos θ

tan (90 - θ) = cot θ

Calculation:

⇒ sin 33°. cos57° = sin(90° - 57°).cos57° = cos57°.cos57° = cos²57°

⇒ sec 62°.sin28° = 1/cos 62° × sin 28° = sin (90° - 62°) × 1/cos 62°

= cos62° × 1/cos 62° = 1

⇒ cos33°. sin 57° = sin (90° - 33°) . sin 57° = sin²57°

⇒ cosec 62°. cos 28° = cos 28° × 1/sin 62°

= cos 28° × 1/sin(90° - 28°)

= cos 28°/cos 28° = 1

⇒ tan 15°.tan 35°.tan 60°.tan 55°.tan 75° = (sin15°/cos15°) × (sin75°/cos75°) × (sin55°/cos55° ) × (sin35°/cos35°) × √3

= √3

Then,

⇒ ? = (cos²57° + 1 + sin²57° + 1)/√3

⇒ ? = 3/√3

⇒ ? = √3

∴ $\frac{ \sin 33^\circ \cos 57^\circ + \sec 62^\circ \sin 28^\circ + \cos 33^\circ \sin 57^\circ + \rm cosec 62^\circ \cos 28^\circ}{\tan 15^\circ \tan 35^\circ \tan 60^\circ \tan 55^\circ \tan 75^\circ}$ = √3

Given:

Average weight of some students = 69.5 kg

Formula:

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

Calculation:

Let number of students in class be N.

Total weight of N students = 69.5N kg

Total weight of 10 students = 10 × 68 = 680 kg

Total weight of 6 students = 6 × 60 = 360 kg

New weight of class = 69.5N - 360 + 680 = (69.5N + 320) kg

New average of class = 69.5 + 2 = 71.5kg

New number students in class = N + 10 - 6 = N + 4

Then,

⇒ 71.5 × (N + 4) = 69.5N + 320

⇒ 71.5N + 286 = 69.5N + 320

⇒ N = 17

∴ Total number of students in a class now = 17 + 4 = 21

Given:

Height at which kite flying = 138m

Calculation:

Triangle is formed with the height at which the kite flies as the height of the triangle, the Length of string as one side of the triangle, and the horizontal as the base of the triangle.

The triangle is 45 - 45 - 90 triangle.

⇒ sin 45 = (height at which kite fly)/(Length of string)

⇒ 1/√2 = 138m/length of string

⇒ length of sting = 195.16 ≈ 195m

∴ The approximate length of the string is 195m.

Calculation:

Fuel consumed by light vehicles = (800 × 70/360 × 100) million litres

Total fuel consumed by aviation and waterways = (800 × (90 + 45)/360 × 100) million litres

∴ Required percentage = (800 × 70/360 × 100)/(800 × 135/360 × 100) × 100 = 51.85 ≈ 52%

Given:

⇒ (x + 2/x) = 7

Formula:

(a + b)² = a² + b² + 2ab

Calculation:

According to the question,

⇒(x + 2/x) = 7

Squaring on both sides of the equation, we get

⇒(x + 2/x)2 = 7²

Using the formula: (a + b)2 = a2 + b2 + 2ab

⇒ x2 + 4/x2 + 2 × x × 2/x = 49

⇒x² + 4/x² + 4 = 49

⇒ x² + 4/x² = 49 - 4

⇒ x2 + 4/x2 = 45 

Multiplying by 2 on both sides of the equation, we get

⇒ 2 × (x2 + 4/x²) = 45 × 2

⇒ 2x² + 8/x² = 90

∴ The value of (2x² + 8/x²) is 90.

Shortcut Trick

The expression 4cos³ A − 3cos A is the standard trigonometric identity for cos 3A.

Given A = 60°, the expression becomes cos (3 × 60°) = cos 180°.

Since cos 180° = −1, the value of the expression is −1.

∴ The correct answer is −1.

Alternate Method

Given: Angle A = 60°

Formula Used: Value of cos 60° = 1/2

Substitute A = 60° in the expression 4cos³ A − 3cos A:

⇒ 4 × (cos 60°)³ − 3 × (cos 60°)

⇒ 4 × (1/2)³ − 3 × (1/2)

⇒ 4 × (1/8) − 3/2

⇒ 1/2 − 3/2

⇒ (1 − 3) / 2

⇒ −2 / 2

⇒ −1

∴ The correct answer is −1.

Additional Information

Triple Angle Formulas

cos 3A = 4cos³ A − 3cos A and sin 3A = 3sin A − 4sin³ A.

Values of Cosine

cos 0° = 1, cos 90° = 0, cos 180° = −1, and cos 270° = 0.

Double Angle Formulas

cos 2A = cos² A − sin² A = 2cos² A − 1 = 1 − 2sin² A.

Given:

Perimeter of an isosceles triangle = 91cm

Formula:

Perimeter of an isosceles triangle = 2 × equal side + unequal side

Calculation:

⇒ Base = 5/4 × equal side

Then,

⇒ 91 = 2 × equal side + 5/4 × equal side

⇒ 13/4 × equal side = 91

⇒ Equal side = 28 cm

⇒ Base = 5/4 × 28 = 35 cm

∴ Length of base is 35cm.

Alternate Method We will solve it by unitary method.

Let the income of the family be 100 units.

Expenditure on food = 35% of 100 units = 35 units

New income of the family = 100 + 30 = 130 units

New percentage expenditure on food = 35/130 × 100 ≈ 27%

Percentage difference in the percentage = [(35 - 27)/35] × 100 ≈ 23%

Required percentage is 23%.

Given:

Expenditure of food = 35% of income of family

Calculation:

Let income of family be Rs.a.

Expenditure of food = 35a/100 = Rs.7a/20

New income of family = a × 130/100 = Rs.65a/50

New expenditure of food = 65a/50 × 35/100 = Rs.91a/200

∴ Required percentage = (91a/200 - 7a/20)/(91a/200) × 100 = 23.07% ≈ 23%

Given:

Distance between P and Q = 30km

Formula:

Average speed = total distance/total time

Calculation:

Time taken by A = 2 hr + 48 min = 2 + 48/60 = 14/5 = 2.8 hours

Distance of level road = 18km

Time taken to travel level road = 18/15 = 1.2 hours

Time taken to travel uphill road = 2.8 - 1.2 = 1.6 hours

Distance of uphill road = 30 - 18 = 12 km

Speed to travel uphill road = 12/1.6 = 7.5 kmph

∴ Average uphill road speed is 7.5kmph.

Calculation:

Total value of the combined production of black tea and herbal tea from 2014 to 2019 = (100 + 90) + (80 + 100) + (110 + 120) + (90 + 120) + (120 + 90) + (100 + 80) = 1200 million tonnes

Average value of the combined production of black tea and herbal tea from 2014 to 2019 = 1200/6 = 200 million tonnes

Total value of the combined production of green tea from 2014 to 2019 = 110 + 120 + 100 + 130 + 80 + 110 = 650 million tonnes

Average value of the combined production of green tea from 2014 to 2019 = 650/6 = 108.33 million tonnes

∴ Required percentage = (200)/(108.33) × 100 = 184.6%

 

Note: As per given question, solution is as above so option has changed to mark correct solution.

Shortcut Trick

Volume of Cylinder = Volume of Sphere

πr²h = (4/3)πR³

16 × 16 × 9 = (4/3) × R³

R³ = 16 × 16 × 9 × 3 / 4 = 16 × 4 × 27 = 64 × 27

R = 4 × 3 = 12 cm

∴ The correct answer is 12 cm.

Alternate Method

Given:

Diameter of Cylinder (d) = 32 cm ⇒ Radius (r) = 16 cm

Height of Cylinder (h) = 9 cm

Formula Used:

Volume of Cylinder = πr²h

Volume of Sphere = (4/3)πR³

Calculations:

⇒ Volume of Cylinder = Volume of Sphere

⇒ π × (16)² × 9 = (4/3) × π × R³

⇒ 256 × 9 = (4/3) × R³

⇒ R³ = (256 × 9 × 3) / 4

⇒ R³ = 64 × 27

⇒ R = ³√(64 × 27)

⇒ R = 4 × 3 = 12 cm

∴ The correct answer is 12 cm.

Additional Information

Cylinder Properties

Total Surface Area of Cylinder = 2πr(h + r) and Curved Surface Area = 2πrh.

Sphere Properties

Surface Area of Sphere = 4πR². For a Hemisphere, Volume = (2/3)πR³ and Total Surface Area = 3πR².

Recasting Rule

When one solid is melted and recast into another, the Volume remains constant, provided there is no wastage.

Given:

? = $\dfrac{87 + \frac{2}{5} \ of \ 115}{25 - \frac{2}{3} × {45 \ of \ 2 ÷ (19 - 4) } }$

Concept:

Calculation:

⇒ ? = $\dfrac{87 + \frac{2}{5} \ of \ 115}{25 - \frac{2}{3} × {45 \ of \ 2 \div (19 - 4) } }$

⇒ ? = [87 + 46]/[25 - 2/3 × {90 ÷ 15}]

⇒ ? = 133/[25 - 2/3 × 6]

⇒ ? = 133/[25 - 4]

⇒ ? = 19/3

∴ $\dfrac{87 + \frac{2}{5} \ of \ 115}{25 - \frac{2}{3} \times {45 \ of \ 2 \div (19 - 4) } }$= $6 \frac{1}{3}$

Given:

x/y + 1 = 4

(x/y) = 3

Formula:

(a + b)² = (a² + b² + 2ab)

Calculation:

⇒ (x/y+ 1)² = (x²/y²) + 1 + 2x/y

⇒ 16 = (x/y)² + 1 + 2 × 3

⇒ (x/y)² + 1 = 10

∴ (x² + y²)/y² = 10

Given:

x - 3 = 1/2x

x - 1/2x = 3

Formula:

(x + y)² = x² + y² + 2xy

(x - y)² = x² + y² - 2xy

Calculation:

x - 3 = 1/2x

⇒ (x - 1/2x)2 = 3²

⇒ x² + 1/4x² - 1 = 9

⇒ x² + 1/4x² = 10

⇒ (x² + 1/4x²)² = 10² 

⇒ x⁴ + 1/16x⁴ + 1/2 = 100

⇒ x⁴ + 1/16x⁴ = 100 - 1/2 = 199/2

∴ x⁴ + 1/16x⁴ = 199/2 = $99 \frac{1}{2}$

Given:

n = 475AB

Concept:

Divisibility test 5 = Numbers, which last with digits, 0 or 5 are always divisible by 5.

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 9 = If the sum of digits of the number is divisible by 9, then the number itself is divisible by 9.

Calculation:

For 5, A = 2 and B = 0 then number is divisible by 5.

But when last three digit is 520, number is divisible by 8.

For 9: 4 + 7 + 5 + A + B = 16 + A + B, then to be divisible by 9, A + B must be 2.

We can not take A + B = 11 as then number is not divisible by 5.

Then A = 2 and B = 0

∴ 10A + B = 10 × 2 + 0 = 20

Calculation:

Total production of fans during week = 240 + 510 + 390 + 150 + 300 + 450 = 2040

Production of fan on Tuesday = 510

∴ Required percentage = 510/2040 × 100 = 25%

Given:

R = 12.5 % per annum

Formula:

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

SI = PNR/100

Calculation:

SI = Final Amount - Initial Amount= 8175 - 5450 = Rs.2725

So SI= Rs. 2725

Since SI = PNR/100

⇒ 2725 = 5450 × 12.5 × N/100

⇒ N = 4

∴ It will take 4 years.

Given:

Diameter of wheel = 1.33m

Formula:

Circumference of wheel = 2πr = πd

Calculation:

Distance covered in one revolution = π × 1.33 = 1.33π m

∴ Distance covered in 380 revolutions = 22/7 × 1.33 × 380 = 1588.4 ≈ 1588

Given:

Discounts = 10%, 17% and 25%

Calculation:

Single discount = 100 - [(100 - 10)/100 × (100 - 17)/100 × (100 - 25)/100] × 100

= 100 - 90/100 × 83/100 × 75/100 × 100

= 43.97 ≈ 44%

∴ Single discount of 44%.

The correct answer is ​A.P.J Abdul Kalam.

Key Points

• A.P.J Abdul Kalam was the President of India from 2002 to 2007.
• He served as the scientific adviser to the defence minister between 1992 and 1997.
• His birth anniversary is celebrated as National Innovation Day.
• He was an Indian scientist and politician who played a leading role in the development of India’s missile and nuclear weapons programs.
• His nickname was 'Missile Man'.
• In 1998, he put forward a countrywide plan called Technology Vision 2020 (road map for transforming India).
• He was sworn in as India’s 11th President in 2002.
• He put forward a countrywide plan called 'Technology Vision 2020' in 1998.
• He is the first Indian President to travel to the Siachen Glacier.
• He is the first President of the Republic to cast a ballot in the Assembly election.
• In 1997, he was awarded the Bharat Ratna award.
• He died on 27 July 2015 during a speech at the Indian Institute of Management in Shillong, Meghalaya.

Additional Information

• "A Promised Land" is a memoir by Barack Obama published on November 17, 2020.
• "The Story of My Experiments with Truth" is Mahatma Gandhi's autobiography, which spans his early infancy until 1921.
• Sachin Tendulkar's autobiography is titled "Playing It My Way."

The correct answer is Mahanadi.

Key Points

• Tel, Jonk, Seonath are the major tributary of Mahanadi.
• The Mahanadi is a major river in East Central India.
• The Mahanadi rises in the highlands of Chhattisgarh.
• It flows through Odisha to reach the Bay of Bengal.
• The length of the river is about 860 km.
• Its drainage basin is shared by Maharashtra, Chhattisgarh, Jharkhand, and Odisha.
• Its main tributaries are the Seonath, the Jonk, the Hasdeo, the Mand, the ib, the Ong, and the Tel.
• The Mikala range in Chattisgarh is where the Mahanadi river originates.
• The Mahanadi river is known as the sorrow of Odisha.
• ‘Ong’ and ‘Tel’ are tributaries of the river Mahanadi.
• Cuttack is located on the bank of Mahanadi.
• Sheonath is the largest tributary of Mahanadi.
• The Maikala range in Chattisgarh is where the Mahanadi river originates.
• The Mahanadi river is known as the sorrow of Odisha.
• ‘Ong’ and ‘Tel’ are tributaries of the river Mahanadi.
• Cuttack is located on the bank of Mahanadi.
• Sheonath is the largest tributary of Mahanadi.
• Sheonath is India's first privatised river.
• Hirakud Dam Project is a multipurpose project for flood control, irrigation, and power generation built across the river Mahanadi in Odisha.

   

Additional Information

• The Ganges is the national river of India.
• In Bangladesh, the Ganga is known as the Padma.
• Major tributaries of Ganga are:
• Ramganga.
• Gomati.
• Ghaghara.
• Gandak.
• Kosi.
• The Krishna River is the second-largest east-flowing peninsular river in India.
• It originates near Mahabaleshwar.
• It is also called "Telugu Ganga".
• Major tributaries of Krishna are:
• Ghataprabha.
• Malaprabha.
• Bhima.
• Tungabhadra.
• Koyna.
• Kaveri river origniated from Talakaveri, Karnataka.
• The mouth of the Kaveri river in the Bay of Bengal.
• It is the largest river in Tamil Nadu.
• Hogenekalfalls is a part of the Kaveri river.
• Major tributaries of Kaveri are:
• Harangi.
• Hemavati.
• Kabini.
• Suvarnavathi.
• Bhavani.

The correct answer is Gwalior and Orchha.

key points

• In December 2020, Gwalior and Orchha  were included in the list of UNESCO World Heritage Cities under its Urban Landscaped Cities programme.
• The State Government of Madhya Pradesh has selected Orchha and Gwalior as pilot cities for the Historic Urban Landscapes Program and Survey which will be conducted by UNESCO New Delhi in collaboration with Madhya Pradesh Tourism Department.
• UNESCO has now included Gwalior and Orchha, the historical fort cities of Madhya Pradesh (India) in its list.
• This inclusion is expected to boost tourism potential along with sustainable development for both the cities.
• Gwalior is an important center of business activities in Madhya Pradesh.
• Gwalior is home to  Gwalior Fort, Man Singh Palace, Sas Bahu Temple and Tansen's Tomb.
• Orchha is a popular tourist destination, which attracts tourists from all over the country.
• Orchha has Orchha Fort, monuments built on the banks of Betwa River, Ram Raja Temple, Kancha Ghat, Dinman Hardaul Mahal and Rani Mahal.

important point

• The United Nations Educational, Scientific and Cultural Organization focuses on everything from teacher training to helping improve education around the world to protecting important historical and cultural sites around the world.
• UNESCO protects  1073 World Heritage Sites in 167 countries .
• UNESCO Headquarters in  Paris, France
• The organization has 193 members and 11 associate members.
• There are a total of  40 World Heritage Sites in India  .

The correct answer is eighth.

Key Points

• The Bengal Basin is the eighth oil and gas producing basin of India.
• It was dedicated to the nation on 20 December 2020.
• It was officially inaugurated by the then Minister for Petroleum & Natural Gas and Steel, Dharmendra Pradhan.
• It is the first oil and gas reserve in West Bengal.
• The petroleum reserve in Ashoknagar has started with the extracted oil being sent to the Haldia refinery of Indian Oil Corporation (IOC).
• The Ashoknagar field falls under the Mahanadi- Bengal-Andaman (MBA) basin.
• The crude oil discovered at the Asokenagar reserve is of high quality.

Important Points

• The other seven oil and gas producing basins of India are:

1. Krishna-Godavari (KG).
2. Mumbai Offshore.
3. Assam Shelf.
4. Rajasthan.
5. Cauvery.
6. Assam-Arakan Fold Belt.
7. Cambay.

Additional Information

• ONGC has identified seven of India's eight producing basins, accounting for 83% of the country's proven oil and gas reserves.
• The first oil and gas reserve in West Bengal was discovered in 2018.
• ONGC spent Rs 3,381 crore for the discovery of the Ashoknagar oilfield.
• There are 26 sedimentary basins in India, according to the Directorate General of Hydrocarbons, encompassing a total area of 3.4 million square kilometres.
• Of these, 16 are on land basins, 7 located both on land and offshore, and 3 completely offshore.

The correct answer is Leander Paes and Mahesh Bhupathi.

Key Points

• Leander Paes and Mahesh Bhupathi were the first Indian pair to reach the finals of all Grand Slams in a year in the Open era, winning French Open and Wimbledon as top seeds.
• Paes-Bhupathi's pair went unbeaten in the team competition from 1997 to 2010.
• Leander Paes and Mahesh Bhupathi's pair reached the finals of all four majors in 1999.
• They created a record for the longest winning streak(24 number).
• Leander Paes had won an Olympic medal in 1996.
• He received the Major Dhyan Chand Khel Ratna award in 1996–97.
• He was honored with the Arjuna Award in 1990.
• He received the Padma Shri award in 2001.
• Mahesh Bhupathi secured the first Grand Slam by an Indian at the 1997 French Open.
• He the first Indian to win a major tournament along with Rika Hiraki.
• He received the Padma Shri award in 2001.
• Paes-Bhupathi pair won their first Grand Slam semi-final at the US Open as 10th seeds in 1997.
• They reached their first final together at the Australian Open as top seeds in 1999.

Additional Information

• Yuki Bhambri is an Indian professional tennis player who became the first Indian to win the junior Australian Open title.
• He represents India in the Davis Cup.
• He is the fourth Indian in history to capture a junior singles title at a Grand Slam championship.
• Rohan Bopanna is an Indian professional tennis player who has been a member of the Indian Davis Cup team since 2002.
• Rohan Bopanna played with Mahesh Bhupathi in 2012.
• Bopanna participated in the Australian Open 2021.

The correct answer is Tushar Mehta.

Key Points

• As of January 2021, Tushar Mehta is the Solicitor General of India.
• He was appointed as Solicitor General of India in 2018.
• .He was appointed as Additional Solicitor General of India in 2014
• The post had been lying vacant since October 2017 when the then Solicitor General Ranjit Kumar had resigned.
• Solicitor General is the second-highest-ranking law officer of the government after the Attorney General.​

Additional Information

• Justice J K Maheshwari is a Judge of the Supreme Court of India who served as the Chief Justice of Sikkim and Andhra Pradesh High Courts.
• As of  November 2021, KK Venugopal is the Attorney General of India.
• Hima Kohli is the first woman Chief Justice of Telangana High Court since it was separated from the Andhra Pradesh High Court in 2019.