SSC CHSL Previous Paper 26 (Held On: 15 March 2018 Shift 3) (Previous Year Paper)

The correct answer is '2' i.e. error lies in this part of the sentence.

Key Points

In this part of the sentence, the usage of 'for' is incorrect Instead, use 'to'

• According to grammar, 'grateful for' means 'If you are grateful for something that someone has given you or done for you' and 'grateful to' means 'you're grateful to a person.'
• In the given sentence, in part 3 the usage of a proper noun is there hence we need to use 'to' preposition with 'grateful'
• Let's see an example-
• She was grateful to him for being so good to her.

So the correct sentence is- He was not grateful to Rahul for helping his cause.

The correct answer is '4' i.e. there is no error in the sentence.

Key Points

• Let's see the formation of the sentence.
• 'On the one hand' is a prepositional phrase in which 'on' is a preposition and 'the one hand' is a noun phrase.
• 'Life' is a noun that is the subject of the sentence and 'seems' is a verb that is a verb for this subject.
• 'transient' is an adjective that is a subject complement of the subject 'life' because it is connected with the linking verb 'seem' i.e. why it is a subject complement.
• 'and' is coordinate conjunction and 'on the other hand' is a connector here.
• 'It' pronoun is used for 'life' and again 'is' is a linking verb and 'permanent' is an adjective that is used for the subject 'it' and 'with' is a preposition and 'the potential' is a prepositional phrase and 'for' is a preposition 'eternal continuity' is a noun phrase which is a prepositional object of 'for'
• Hence, there is no grammatical mistake, the structure is correct.

The correct answer is 'Across'

Key Points

• Let's see the usage of the given prepositions-
• In- is a preposition that means 'expressing the situation of being enclosed or surrounded by something.'
• Let's see an example
• He was in his car.
• Within- Is a preposition that means a place, area, or object, it is inside it or surrounded by it.'
• Let's see an example-
• Clients are entertained within private dining rooms.
• Across- Is a preposition that means a place or a boundary, they go from one side of it to the other.'
• Let's see an example-
• She walked across the floor and lay down on the bed.
• Off- Is a preposition that means 'something else or moves off it, it is no longer touching that thing.'
• Let's see an example-
• He took his feet off the desk.
• So according to the meaning of the preposition, the correct answer is 'Across'

So the correct sentence is- The big tree was across the lake.

The correct answer is 'Few'

Key Points

• According to grammar, the meaning of 'few' is 'You use a few to indicate that you are talking about a small number of people or things.'
• Let's see an example-
• A train would pass through there every few minutes at that time of day.

So the correct sentence is- Few people in slum areas have access to toilets even in Delhi.

The correct answer is 'Cynic'

Key Points

• Let's see the meaning of the given words-
• Heretic→ means 'A person believing in or practicing heresy'(विधर्म में विश्वास करने वाला या आचरण करने वाला व्यक्ति)
• Cynic→ means 'A person who believes that people are motivated purely by self-interest.'(एक व्यक्ति जो मानता है कि लोग पूरी तरह से स्वार्थ से प्रेरित होते हैं)
• Loyalist→ means 'A person who remains loyal to the established ruler or government.'(ऐसा व्यक्ति जो स्थापित शासक या सरकार के प्रति वफादार रहता है)
• Righteous→ means 'morally right or justifiable'(नैतिक रूप से सही या उचित)
• Faithful→ means 'remaining loyal or steadfast.'(वफादार या स्थिर रहना)

So according to the meaning of the given words, the correct answer is 'Cynic'

The correct answer is 'Bond'

Key Points

• Let's see the meaning of the given words-
• Covenant→ means 'A solemn agreement'
• Difference→ means 'A way in which people or things are different'
• Bond→ means 'A binding agreement'
• Devotion→ means 'Love, loyalty, or enthusiasm'
• Conversation→ means 'A spoken exchange of news and ideas between people'
• So according to the meaning of the given words, the correct answer is 'Bond'

The correct answer is Option 4.

Key Points

• "Lechery" refers to excessive or offensive sexual desire or lustfulness.
• "Benevolence" means kindness, charity, and goodwill, which are positive moral qualities opposed to the negative connotation of "lechery."
• The other options (Lust, Binge, Excess) have meanings that are either similar to or imply some form of indulgence, which aligns more closely with the meaning of "lechery."
• The correct antonym for "lechery" should reflect a concept that is morally good and opposite to lust and indulgence.
• Therefore, "benevolence" is the most appropriate word that denotes the opposite moral quality of "lechery."
• This makes "benevolence" clearly the word that contrasts most effectively with "lechery."

Therefore, the correct answer is Option 4.

Additional Information

• Lust – Inappropriate, it is synonymous with "lechery" rather than opposite.
• Binge – Inappropriate, implies indulgence in excess, similar to "lechery."
• Excess – Inappropriate, suggests overindulgence, aligning more closely with "lechery."

The correct answer is 'Allow'

Key Points

• Let's see the meaning of the given words-
• Inhibit→ means 'Hinder or restrain'
• Check→ means 'examine the accuracy and quality'
• Stop→ means 'Come or cause to come to an end'
• Frustrate→ means 'prevent from progressing'
• Allow→ means 'let (someone) have or do something'
• So according to the meaning of the given words, the correct answer is 'Allow'

The correct answer is 'PRQ'

Key Points

• A sentence can't end with and or that is able to => Only Q can be third. Rule out 2) and 3). For a => must be followed by a singular noun. Thus, P is first. Option 4) PRQ is the correct answer.

So the correct sentence is- Logo centrism is the search for a rational language that is able to know and represent the world and all its aspects perfectly and accurately.

The correct answer is 'The animals are being observed'

Key Points

• The given sentence is in the Active voice.
• Let's see the transformation of the Active voice in the Passive voice.
• The subject of the sentence in the Active voice becomes the object of the sentence in the passive voice.
• The tense of the sentence will remain the same in the passive voice.
• If the sentence has an infinitive and doesn't have the object you need to make the passive of the infinitive phrase.
• In the given sentence, the subject is 'I' and the tense of the sentence is 'present continuous tense' the object of the sentence is 'the animals'
• The structure for the present continuous tense is- be(is/am/are) + Being + V₃

So the correct sentence in the passive voice is- The animals are being observed. 

Additional Information 

• In the given sentence, the 'by me' has not been added because it is optional as 'the verb observe' is both the transitive and intransitive verb hence, in the passive voice its meaning is conveyed that someone has been observing the things. So the given sentence is correct.

The correct answer is 'Kavita asked me how my mother was. '

Key Points

• The given sentence is in 'direct speech' and this is an interrogative sentence.
• Let's see the transformation of the interrogative sentences-
• Change in helping verb (Is, are, am, was, who, has, have, had, will, can, could, do, does, did. Interrogative pronoun, adverb, adjective (what, whom, where, why, how, which, what )
• We can change the verb of reporting speech according to the sense, but shouldn't be changed in the sentence… like we can say we can “asked”  “demanded” in the place of “said” and no use of the conjunction “that”.
• If the sentence starts with an interrogative pronoun or adjective and interrogative adverb, an indirect sentence also starts with these but without conjunction.
• Let's see an example-
• She said to me, “how are you?” (Direct speech)
• He asked me how I was. (Indirect speech.)
• So the correct Indirect speech is written in option- 4

The correct answer is 'Camouflage'

Key Points

• The correct spelling of the given word is- Camouflage
• The meaning of the given word is- The disguising of the military personnel and equipment by painting or covering them up making them blend in with their surroundings.
• Let's see an example-
• ​They were dressed in camouflage and carried automatic rifles.

Additional Information

• As a noun, 'Camouflage' is an uncountable noun. The meaning of this is 'is the way in which some animals are colored and shaped so that they cannot easily be seen in their natural surroundings.'
• Let's see an example-
• Their camouflage is enhanced by the growth of algae on their fur.

The correct answer is 'Justice'

Key Points

• Let's see the meaning of the given words-
• Judge is a noun that means a public officer appointed to decide cases in a law court.'
• Judgment is a noun that means 'the ability to make considered decisions'
• Justice is a noun that means 'the administration of the law or authority in maintaining this.'
• Judiciary is a noun that means 'the judicial authorities of the country.'
• So according to the meaning of the words, the correct answer is 'justice'

The correct answer is 'Happiness'

Key Points

• According to grammar, in the given blank, we need a noun because before the blank there is a preposition and we know that after the preposition we need a prepositional object and it can be a noun/pronoun/gerund.
• Let's see the parts of speech of the words-
• Happy is an adjective
• Happier is an adjective (in a comparative form)
• Happiest is an adjective (in a superlative form)
• Happiness is a noun.
• So the correct answer is 'Happiness'

The correct answer is 'Which'

Key Points

• According to grammar, in the given blank, we need an object for the verb-phrase 'are removed' and we know that the object can be a noun/noun clause hence to make a noun clause we need a noun/pronoun.
• So, for things we can use the relative pronoun 'which' hence, the correct answer is 'option 3'

The correct answer is 'why'

Key Points

• Let's see the parts of speech of the given words-
• 'If' is an adverb
• 'Because' is conjunction.
• 'Why' is a pronoun.
• 'Therefore' is conjunction.
• In the given blank, we need a pronoun for the verb 'is' an object is an object of the sentence. So the correct answer is 'Option 3'

The correct answer is 'No'

Key Points

• The blank is supposed to indicate zero quantity of a noun (peace).
• So the correct answer is 'Option 3'

The correct answer is 'To further a loss with mockery to worsen an unfavorable situation.'

Key Points

• The meaning of the given idiom 'Add insult to injury' is 'to make an unfair or unacceptable situation even worse'
• Let's see an example-
• The Council of State opposed the president's suggestion and added insult to injury by leaking its hostile and secret comments to the press.

The correct answer is 'Get married.'

Key Points

• The meaning of the given idiom 'Tie the knot' is- to get married
• Let's see an example-
• The couple tied the knot last year after a 13-year romance.

The correct answer is 'Chafe'

Key Points

• Let's see the meaning of the given words-
• Asunder→ means 'Apart'
• Chafe → means 'make or become sore by rubbing'
• Gelid→ means 'icy, extremely cold'
• Nippy→ means 'able to move quickly'
• So according to the meaning of the given words, the correct answer is 'Chafe'

The correct answer is 'Ephemeral'

Key Points

• Let's see the meaning of the given words-
• Ephemeral→ means 'lasting or used for a very short time.'
• Immortal→ means 'living forever'
• Incessant→ means 'Continuing without pause or interruption'
• Perennial→ means 'Lasting for a long time; enduring or continually'
• So, according to the meaning of the given words, the correct answer is 'Ephemeral'

The correct answer is 'Were fined'

Key Points

• The subject "more than 8,000 pedestrians" is plural, requiring a plural verb form for correct subject-verb agreement.
• The action occurred "last year," indicating past tense is needed; "were fined" is the correct past plural form of the verb.

So the correct sentence is - A case in point is Sydney, Australia, where last year more than 8,000 pedestrians were fined for illegally crossing city streets.

The correct answer is 'No improvement'

Key Points

• According to grammar, 'for a long time' means 'to describe something that has existed or been a particular thing for a long time.' Hence, this activity has been started in the past and still exists in.
• So, use the present perfect tense.
• Let's see an example-
• He hasn't watched TV for a long time.

So the correct sentence is- We have been away for a long time, you know, and so we're anxious to get home again.

The correct answer is 'CBA'

Key Points

• All the other must be followed by a plural noun. Only C qualifies this => C is first. Rule out 2) and 4). 1) is ruled out as punished giving them makes no sense in any way. Option 3) CBA is the correct answer.

Inform all the other officers that anyone giving them a lift too would be punished.

The correct answer is 'Scintillate'

Key Points

• The correct spelling of the given words is- Scintillate
• The meaning of the given word is- 'emit flashes in the light; sparkle'
• Let's see an example-
• the diamond ring scintillated in the sunlight

Just as a lawyer (profession) works in a court (place), similarly a waiter works in a restaurant.

Hence, the answer is Restaurant : Waiter.

Here the pattern followed is:

(48 × 4) + 4 = 196

Similarly,

(52 × 4) + 4 = 212

Hence, the correct answer is 212.

Here the pattern followed is:

G + 1 = H,                

S + 1 = T,

R - 2 = P

Similarly,

R + 1 = S,

J + 1 = K,

H – 2 = F

Hence, the answer is RJH : SKF

Odometer, Thermometer, Barometer are used to measure whereas degree is the unit of measurement.

Hence, Degree is the correct answer.

1. 23 – (23)² = 529

2. 19 – (19)² = 361

3. 11 – (11)² = 121

4. 17 – (17)² = (289) 269

Hence, 17 - 269 is the correct answer.

1. DKR → D + 7 = K; K + 7 = R

2. JQX → J + 7 = Q; Q + 7 = X

3. IPT → I + 7 = P; P + 7 = W (T)

4. LSZ → L + 7 = S; S + 7 = Z

Hence, IPT is the correct answer.

The dictionary order would be,

5. Wallet
6. Warp
7. Warrior
8. Wary
9. Wash

Hence, the correct answer is 51234.

9 × 1 = 9; 9 × 2 = 18; 18 × 3 = 54; 54 × 4 = 216; 216 × 5 = 1080

Hence, the correct answer is 1080.

Hence, the answer is GW.

The distance of his endpoint from point A 

= $\sqrt {{{10}^2} + {{14}^2}}$

= $\sqrt {100 + 196}$

= $2\sqrt {74}$

Hence, the distance between Akash and Point A is $2\sqrt {74}$ km and he is towards South - West from point A.

1. RAGE - REAPPROACHEMENT (cannot be formed because G is missing)

2. APPROACH - REAPPROACHEMENT (can be formed)

3. RENT - REAPPROACHEMENT (can be formed)

4. CHEAP - REAPPROACHEMENT (can be formed)

On following the given pattern we get that :

Hence, 'fi' is the correct answer.

After interchanging the codes, we get

9 - 14 + 15 × 10 ÷ 16

= 9 + 14 × 15 ÷ 10 – 16

= 9 + 14 × 1.5 - 16

= 9 + 21 - 16

= 30 - 16

= 14

Hence, the correct answer is 14.

1. ÷ and – → 20 + 12 × 35 ÷ 20 - 10 = 31      

2. • and × → 20 × 12 + 35 - 20 ÷ 10 = 273
3. • and ÷ → 20 ÷ 12 × 35 - 20 + 10 = 48.33
4. • and + → 20 - 12 × 35 + 20 ÷ 10 = - 398

Hence, the correct answer is (÷ and –)

The pattern followed here is,

5 Δ 1 → (5 - 1) × 10 = 40,

9 Δ 9 → (9 - 9) × 10 = 0,

7 Δ 1 → (7 - 1) × 10 = 60

Similarly,

4 Δ 9 → (4 - 9) × 10 = - 50

Hence, the correct answer is – 50.

According to the sequence, the previous letter becomes smaller at every next step.

Hence, the answer is aBCABCABC.

Hence, Parul is 0.5 km east from her starting point.

The least possible Venn diagram for the given statements is as follows:

Conclusion

I: All photographs are paintings - false (as it is not definite)

II: All paintings are photographs - true (as all paintings are pictures and all pictures are photographs)

Hence, only conclusion II follows.

The set of letters represents Joggers who are either Engineers or Food stylists denoted with shaded parts as:

Hence, the correct answer is BEF.

R + 2 = T; T + 2 = V; V + 2 = X; X + 2 = Z

P + 3 = S; S + 3 = V; V + 3 = Y; Y + 3 = B

K + 2 = M; M + 2 = O; O + 2 =Q; Q + 2 = S

Hence, the correct answer is ZBS.

8 + (2³) = 8 + 8 = 16

16 + (3³) = 16 + 27 = 43

43 + (4³) = 43 + 64 = 107

107 + (5³) = 107 + 125 = 232

232 + (6³) = 232 + 216 = 448

Hence, the correct answer is 448.

1. (6, 24, 18) – (6, 6 × 4 = 24, 6 × 3 = 18)

2. (9, 36, 27) – (9, 9 × 4 = 36, 9 × 3 = 27)

3. (7, 28, 21) – (7, 7 × 4 = 28, 7 × 3 = 21)

4. (5, 20, 10) – (5, 5 × 4 = 20, 5 × 3 = 15 (18))

Hence, (5, 20, 10) is the correct answer.

Hence, the correct answer is option 4)

and

 must be opposite but in option 3), they are adjacent.

Therefore, option 3) is the correct answer.

1. 69,21,58,77 – P, L, U, S

2. 14,99,34,66 – J, V, D, T

3. 24,68,43,79 – K, T, G, Q

4. 43,58,24,55 – G, U, K, W

Hence, the correct answer is 69, 21, 58, 77.

Calculation:

Prime no. between 1 to 50 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47

The sum of prime no. from 1 to 50

⇒ 2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47

⇒ 328

Number of prime numbers from 1 to 50 = 15

Average of prime no. from 1 to 50

⇒ 328/15

⇒ 21.867

∴ The answer is 21.867.

5/9 = 0.555

√(9/49) = 3/7 = 0.428

0.43 = 0.43

(0.7)² = 0.49

So the least no. is √(9/49)

∠AOB = 2 ∠ACB = 2 × 15 = 30°

OA = OB (Both are radii of circle)

So, ∠OAB = ∠OBA = x°

x° + x° + 30° = 180°

⇒ 2x° = 150°

⇒ x° = 75°

∴ ∠OAB = 75°

Concept used:

• Sum of three angles of a triangle is 180° 

• In an isosceles triangle the two angles opposite to the equal sides are equal

• The exterior angle of a triangle is equal to the sum of the two interior opposite angles.

Calculation:

∠ACD (outer angle) = 180° – 45° = 135°

∠CAB + ∠CBA = ∠ACD (outer angle) = 135°

AC = BC (Both are same side given) so ∠CAB = ∠CBA = x°

⇒ x° + x° + 45° = 180°

⇒ 2x° = 135°

⇒ x° = 67.5°

∴ 2∠A + ∠B = 2 × 67.5 + 67.5 = 202.5°

Given:

The side of the square is increased by 20%

Formulae Used:

Perimeter of square = 4 × side

Calculation:

Let side of square is a

Perimeter of square = 4a

New side = 120% of a = 1.2a  

New perimeter = 4 × 1.2a = 4.8a

∴ % increase in perimeter = (4.8a – 4a)/4a × 100 = 0.8a/4a × 100 = 20%

Given:

Ratio of salary of X : Y : Z = 15 : 3 : 8

Calculation:

⇒ X : Y : Z = 15 : 3 : 8

Let X = 15a, Y = 3a, Z = 8a

⇒ 8a – 3a = 3960

⇒ a = 792

Salary of X = 15a = 15 × 792 = Rs.11880

∴ The correct answer is Rs.11880.

Given:

Previous ratio

Sugar : Milk = 4 : 5

Final ratio:

Sugar : Milk = 2 : 3

Calculation:

Let the initial quantity of sugar = 4a and milk = 5a

According to the question:

⇒ 4a/(5a + 7) = 2/3

⇒ 10a + 14 = 12a

⇒ 2a = 14

⇒ a = 7 liters

Quantity of Sugar in the new mixture = 4a = 4 × 7 = 28 liters

∴ The correct answer is 28 liters.

Alternate MethodCalculation:

So

(6 - 5) = 1 unit = 7 liters

Quantity of Sugar in the new mixture = 4 unit = 4 × 7 = 28 liters

∴ The correct answer is 28 liters.

Calculation:

Total toffees purchase on first day = 20/1 = 20

Total toffees purchased on the next day = 40/(1 × 50/100) = 80

Total toffees purchased = 20 + 80 = 100

Total money spent = 20 + 40 = 60

The average price per toffee = 60/100 = Rs.0.60 = 60 Paise

∴ The correct answer is 60 Paise.

Given:

Principal = Rs.6800

Time = 18 months

S.I = Rs.2244

Formula used:

S.I. = (P × R × T)/100

Where P = principal; R = rate; T = time

Calculation:

⇒ S.I. = (P × R × T)/100

⇒ 2244 = (6800 × R × 18/12)/100

⇒ 2244 = (6800 × R × 1.5)/100

⇒ R = 224400/ (6800 × 1.5) = 22%

∴ The correct answer is  22%.

Calculation:

Let the selling price of a chair be Rs. 10

S.P of 56 chairs = 56 × 10 = 560

Profit = selling price of 6 chairs = 6 × 10 = 60

Cost price of 56 chairs = 560 – 60 = Rs. 500

% Profit = 60/500 × 100 = 12%

∴ The profit percentage is 12%.

Alternate MethodCalculation:

According to the question:

⇒ S.P (56) - C.P(56) = S.P(6)

⇒ S.P (56) - S.P (6) = C.P(56)

⇒ S.P (50) = C.P(56)

⇒ S.P/C.P = 28/25

Profit % = {(28 - 25)/25} × 100

⇒ (3/25) × 100 = 12%

∴ The profit percentage is 12%.

Given:

M.P of article = Rs.1200

Retailer got the discount = 25%

S.P of article = Rs.1200

Calculation:

Retailer's C.P. of the article = 1200 × 75/100 = Rs.900

S.P of article = Rs.1200

Profit % = (1200 - 900)/900 × 100 = 300/900 × 100 = 33.33%

∴ The correct answer is 33.33%.

Given:

√20 + √125 = 15.65

Calculation:

⇒ √20 + √125 = 15.65

⇒ 2√5 + 5√5 = 15.65

⇒ √5 = 15.65/7

Solving the given equation:

⇒ √45 + √5

⇒ 3√5 + √5

⇒ 4√5 = 4 × 15.65/7 = 8.94

∴ The correct answer is 8.94.

Given:

Both A and B together can complete a work = 20 days

B can complete a work = 36 days

Concept used:

Efficiency × Time = Total work

Calculation: 

Time taken by B to complete the work = 36 days

Time taken by A and B together to complete the word = 20 days

Let Total work = LCM of 36 and 20 = 180 units

Efficiency of B = 180/36 = 5 units/day

Efficiency of A and B together = 180/20 = 9 units/day

Efficiency of A = 9 – 5 = 4 units/day

Time taken by A to complete the work alone = 180/4 = 45 days

∴ The correct answer is 45 days.

Given:

Speed of train = 40 m/s

Length of bridge = 550 m

Time to cross the bridge = 25 s

Formula used:

Distance = Relative speed × Time

Calculation:

Let the length of the train be L

Distance = Relative speed × Time

Length of train + length of bridge = 40 × 25

⇒ L + 550 = 1000

⇒ L = 1000 – 550 = 450 m

∴ The correct answer is 450 m.

3√7 + √343 = 26.45

⇒ 3√7 + 7√7 = 26.45

⇒ 10√7 = 26.45

⇒ √7 = 2.645

∴ √252 + 20√7 = 6√7 + 20√7 = 26√7 = 26 × 2.645 ≈ 68.77

Given:

⇒ y/x = 1/3

Calculation:

Let y = k and x = 3k

Putting the values in the given equation:

⇒ (x² + y²)/(x2 - y2)

⇒ {(3k)² + k²}/{(3k)2 - k2}

⇒ (9k² + k²)/(9k2 - k2)

⇒ 10 k²/8 k2 = 5/4

∴ The correct answer is 5/4.

Total seats = seats of (A + B + C + D + E + F + G) = 100 + 15 + 25 + 40 + 60 + 90 + 70 = 400

Seats to reach the half way mark = 400/2 = 200

Total seats of parties D, E and F = 40 + 60 + 90 = 190

∴ Required seats to reach the half way mark = 200 – 190 = 10

∴ The central angle of the sector representing number of seats of party F is = (F’s seats) / (Total seats) × 360 = 90/400 × 360 = 81°

∴ Total seats = seats of (A + B + C + D + E + F + G) = 100 + 15 + 25 + 40 + 60 + 90 + 70 = 400

Calculation:

As shown in the pie chart, the value of F is 90 which is 2^nd highest

∴ answer is F

Given:

Length of a parallel side = 4 cm

Length of the other parallel side = 6 cm

Area of trapezium = 25 cm²

Formula used:

Area of trapezium = 1/2 × (sum of parallel sides) × (distance between parallel sides)

Calculation:

⇒ 1/2 × (sum of parallel sides) × (distance between parallel sides) = Area of trapezium

⇒ 1/2 × (4 + 6) × (distance between parallel sides) = 25 

⇒ distance between the parallel sides = 25/5 = 5 cm

∴ The correct answer is 5 cm.

Given:

Circumference of circle = 44 cm

Formula used:

Circumference of circle = 2πr

Calculation:

Circumference of circle = 2πr

⇒ 44 = 2 × 22/7 × r

⇒ r = 7 cm

Area of the circle = πr²

⇒ 22/7 × 7 × 7 = 154 cm²

∴ The correct answer is154 cm2.

Given:

Volume of Hemisphere = 5749.33 cm³

Formula used:

The volume of Hemisphere = 2/3 × πr³

Calculation:

The volume of Hemisphere = 2/3 × πr3

⇒ 5749.33 = 2/3 × 22/7 × r³

⇒ r³ = 130.66 × 21 = 2743.998 = 2744

⇒ r³ = 2744

⇒ r = 14

Diameter = 2r = 2 × 14 = 28 cm

∴ The correct answer is 28 cm.

Given:

∠Q = 90°; ∠P = 45° 

Formula used:

Cosec 45° = √2

Calculation:

In △ PQR

∠P + ∠Q + ∠R = 180°

⇒ 45° + 90° + ∠R = 180°

⇒ ∠R = 180° – 135° = 45°

Solving the given equation:

(cosec R + 1/3)

⇒ cosec 45° + 1/3

⇒ √2 + 1/3 = (3√2 + 1)/3

∴ The correct answer is (3√2 + 1)/3.

Given:

∠Q = 90° 

Cos P = 5/13; PQ = 2.5 cm

Calculation: 

⇒ cos P = 5/13 = PQ/PR

⇒ 5/13 = 2.5/PR

⇒ PR = 13/2 = 6.5 cm

∴ The correct answer is 6.5 cm.

• Recession is the reduction in production and employment for want of sufficient demand for goods.
• In economics, a recession is a business cycle contraction which results in a general slowdown in economic activity.
• It is a period of general economic decline, defined usually as a contraction in the GDP for six months marked by high unemployment, stagnant wages, and fall in retail sales.

Mineral oil is any of various colourless, odourless, light mixtures of higher alkanes from a mineral source, particularly a distillate of petroleum. The mineral oil cannot be found in the plateau regions because of the relative younger age of the plateaus. It is generally found in the sea beds.

• The Narmada, also called the Rewa and previously also known as Nerbuddais a river in central India and the sixth longest river in the Indian subcontinent.
• Son River of central India is the second largest of the Ganges' southern tributaries after Yamuna River.

• The Saka Era was founded by Kanishka, the emperor of the Kushana empire from the year 78 A.D.
• His inscriptions, dated to the years 11 and 52, have been found at Andhau in Kutch region.
• The Saka era is a historical calendar era, corresponding to Julian year 78.
• It is commonly known in Indian languages as Shalivahana Saka.

Venkatapati Raya was the younger brother of Sriranga Deva Raya and the ruler of Vijayanagara Empire with bases in Penukonda, Chandragiri and Vellore. His reign of three decades saw a revival of the strength and prosperity of the empire. He allowed the Portuguese to build a church in his empire.

The correct answer is Anoushka Shankar.

Key Points

• Anoushka Shankar
• ​Anoushka Shankar is a British-Indian-American sitar player.
• She was the youngest and first woman to receive a British House of Commons Shield.
• She has had 7 Grammy Awards nominations and was the first Indian musician to perform live and to serve as a presenter at the ceremony.
• She performs across multiple genres and styles - classical and contemporary, acoustic and electronic.

Additional Information

Qatar, on 25 October 2017 announced that it will be introducing a minimum wage for workers. The country has been under global scrutiny over its alleged ill-treatment of migrant labourers. Qatar has one of the highest per capita incomes of 1.25lakh dollars in Purchasing power parity.

• The third Indian Council for Cultural Relations (ICCR) Distinguished Indologist Award for the year 2017 was awarded to Professor Hiroshi Marui of Japan.
• He was presented with this award by President Ram Nath Kovind at a function in Rashtrapati Bhavan, New Delhi. Indology is academic study of history, cultures, languages and literature of India and is a subset of Asian studies.

Ping-pong diplomacy refers to the exchange of table tennis players between the United States and People's Republic of China in the early 1970s. This form of diplomacy was used to ease out the tensions between the two countries before the cultural revolution of China.

Magnesium is a chemical element with symbol Mg and atomic number 12. It is a shiny grey solid which bears a close physical resemblance to the other five elements in the second column of the periodic table.

In organic chemistry, an alkene is an unsaturated hydrocarbon that contains at least one carbon-carbon double bond. The words alkene and olefin are often used interchangeably.

The formula of Alkane - C_nH_(2n+2) 

The formula of Alkene - C_nH_(2n) 

The formula of Alkyne - C_nH_(2n-2) 

• The Rajya Sabha or Council of States is the upper house of the Parliament of India. Membership of Rajya Sabha is limited by the Constitution to a maximum of 250 members, and current laws have provision for 245 members.
• There are total 245 seats out of which 233 are Elected; 12 Nominated; 4 Vacant (1 Elected and 3 Nominated Seats)

• Article 356 in the Constitution of India is a part of Emergency Provisions to deal with any adverse law and order situation or failure of Constitutional Machinery within a State.
• This power can be exercised by President of India only or Governor can also impose Emergency after due consultation with the President.

The correct answer is Transpiration pull

EXPLANATION:

• Transpiration pull or the suction force is the force which aids in drawing the water upward from roots to leaves.
• In leaves, some amount of water is used for photosynthesis and excess water is released into the atmosphere through openings called as stomata.

It is the project to pump Narmada water in 115 Dams of arid Saurashtra region after the Prime Minister dedicated to public phase-I of the linking canalin August, 2017. The project is aimed at improving the irrigation facilities in the area after a series of draughts.

• Scientists from New Zealand have developed world’s first artificial intelligence politician named SAM. It was created by Nick Gerritsen, entrepreneur in New Zealand.
• The virtual politician SAM can answer person’s queries regarding local issues such as policies around housing, education and immigration.

The correct answer is 100%.

Key Points

• Insolvency and Bankruptcy Board of India 
• The Insolvency and Bankruptcy Board of India (IBBI) was established on 1^st October 2016 under the Insolvency and Bankruptcy Code, 2016 (IBC).
• As the body is created by an act of the parliament, it is a statutory body.
• It is a unique regulator: regulates a profession as well as processes.
• It has regulatory oversight over the Insolvency Professionals, Insolvency Professional Agencies, Insolvency Professional Entities and Information Utilities.
• It has also been designated as the ‘Authority' under the Companies (Registered Valuers and Valuation Rules), 2017 for regulation and development of the profession of valuers in the country.
• Current Chairperson - Ravi Mittal

Additional Information Some very important terms:

• Insolvency:
• ​Insolvency is a state of financial distress in which a business or person is unable to pay its bills or debts.
• This person or business is called Insolvent.
• Bankruptcy:
• ​Bankruptcy is a legal proceeding involving a person or business that is unable to repay its outstanding debts.
• Liquidation:
• ​Liquidation in finance and economics is the process of bringing a business to an end and distributing its assets to claimants.

The Companies (Amendment) Act, 2017 introduces several amendments to the Companies Act 2013, realigning provisions to improve corporate governance and ease of doing business in India while continuing to strengthen compliance and investor protection

CONCEPT: 

• When an electric current is passed through a conductor, the conductor becomes hot after some time and produces heat.
• This happens due to the conversion of some electric energy passing through the conductor into heat energy.  This effect of electric current is called the heating effect of the current or the Joule heating effect.
• The appliances based on the heating effect of electric current work on both AC and DC supply.
• The amount of heat liberated can be given as
• $H = \frac{{Pt}}{{4.2}}cal \Rightarrow ;H = W = ;Pt = {I^2}Rt;joule$

Electric current passing through conductor = IT

The power dissipated across the copper coil = P

Work done by current = W

The resistance of wire = R

Heat dissipated because of current = H

time period = t

CALCULATION:

Heat generation = P × t

Heat generation = I² × R × t

Where I = Current

R = resistance

t = time

Heat generation = (0.1)² × 1000 × 25

= 250 J

The pascal is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus and ultimate tensile strength. It is named after the French polymath Blaise Pascal.

1 pascal = 1 N m^-2

The atmosphere of Earth is the layer of gases, commonly known as air, that surrounds the planet Earth and is retained by Earth's gravity. By volume, dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere.

• Max Emilian Verstappen is a Belgian-Dutch racing driver who competes under the Dutch flag in Formula One with Red Bull Racing.
• Steven Smith is an Australian international cricketer and former captain of the Australian national team.
• Sergio Agüero is an Argentine professional footballer who plays as a striker for Premier League club Manchester City and the Argentine national soccer team.

The Formatting toolbar is located just below the menu bar. It contains buttons representing commands such as New, Open, Save, and Print. One can customize the buttons that appear on the formatting toolbar using the customize toolbar menu item.