SSC CHSL Previous Paper 49 (Held On: 24 March 2018 Shift 3) (Previous Year Paper)

The correct answer is- 'Annexations'

Additional Information

• 'Annexations' is a 'noun' and it means 'possession taken of a piece of land or a country, usually by force or without permission'
• Example: Annexations helped San Jose grow into one of the nation's biggest cities.

Here, the correct spelling is- Annexations

The correct answer is- 'ACB'

Key Points

• In the given sentence ‘With global warming on the rise…’ seems to be a logically correct part of a meaningful sentence. So, A can be the first part of the sequence.
• ‘we have to do…’ should follow an action. So, the next part that can follow is C and part B explains why should we do that action. So, B can complete the sentence.
• Therefore, the correct sequence is ACB, making option 2 the correct answer.

The correct sentence is- With global warming on the rise, we have to do every bit we can to save the environment.

The correct answer is- 'have attained'

Key Points

• Using 'have attained' in place of 'has attained' to make the sentence correct.
• We know that ‘Great personalities’ is plural in nature. So, it should be followed by the plural verb 'have'**, and not by 'has'.
• The given sentence is in Present perfect tense
• Structre: Sub + has/have + V₃ + object
• When we use 'have'**, the verb that follows should be in its present perfect form (-ed form)
• Examples: I have considered this option.

The correct sentence is- Great personalities have attained their heights by doing things differently.

The correct sentence is- 'No improvement'

Key Points

• There is no need for improvement in the given sentence
• The use of the word 'Then' indicates that the time in question is in the past.
• So, the sentence should use was to highlight the past tense. (and not is). Also, ‘the cost of something’ is singular which cannot be followed by 'are' and 'were'.

The correct sentence is- The cost of a cylinder then was about ₹18.

Additional Information

• 'Then' meaning ‘at that time’.
• We can use then to mean ‘at that time’, referring either to the past or the future. In this case, it is usually at the end of the clause.
• Let's see the example:
• What age were you then?
• This time next week, I’ll be on a plane to Kiev. Where will you be then?

The correct answer is- 'Tacky'

Key Points

• 'Tacky' is a noun and it means 'of cheap quality or in bad style or Showing poor taste and quality'
• Example: The shop sold tacky souvenirs and ornaments.

Hence option 3 is the most appropriate answer here.

• Let's find out the meaning of the other options:

The correct answer is- 'Ascribe'

Key Points

• The word 'Ascribe' is a verb and it means 'to consider something to be caused, created, or owned by someone or something.'
• Example: People like to ascribe human feelings to animals (= believe animals have human feelings).

Hence option 3 is the most appropriate answer here.

• Let's find out the meaning of the other options:

The correct answer is- 'Cannot think rationally due to being overwhelmed with emotion.'

Key Points

• 'I can't think straight' is an idiom and it means 'to be unable to consider things carefully or correctly.'
• Example: I was so tired, I couldn't think straight.

Hence the option 3 gives the correct meaning of the idiom I can't think straight.

The correct answer is- 'Everyone will have good luck at some point in their lives'

Key Points

• 'Every dog has its day' is an idiom and it means 'said to emphasize that everyone is successful or happy at some time in their life.'
• Example: I know you're shocked that that dopey kid got a better grade than you, but hey, every dog has its day.

Hence the option 2 gives the correct meaning of the idiom every dog has its day.

The correct answer is- 'of'

Key Points

• Using 'of' in the blank space to make the sentence meaningful.
• An appropriate preposition to be used here is 'of'.

Therefore, option 2 is the most appropriate answer here.

Additional Information

• One should note that 'of' indicates belonging or relationship between different words (The order of the Phoenix, The faith of your people, etc. )
• Whereas 'off' shows separation or disconnection (She ran off with the cash – to move/run away suddenly).

The correct answer is- 'those'

Key Points

• Using 'those' in the blank space to make the sentence meaningful.
• ‘muscles’ have been mentioned in the preceding part of the sentence. So, we can use 'these' or 'those' as muscles are plural.
• ‘These’ is used to refer to objects nearer to the speaker and ‘Those’ is used for objects far from the speaker.
• Clearly, we are talking about the muscles of an athlete (and not of the speaker). So, 'Those' will be the proper fit. (… to develop those muscles…)

Therefore, option 4 is the most appropriate answer here.

The correct answer is- 'with'

Key Points

• Using 'with' in the blank space to make the sentence meaningful.
• The correct phrase to be used here is ‘to cope with’ and it means 'to deal effectively with an unpleasant or a difficult situation.'
• Example: The economy could not cope with war.

The correct sentence is- expect to cope with others of his kind

The correct answer is- 'proportions'

Key Points

• The word ‘Proportions’ is a noun and it means 'a part, share, or number considered in comparative relation to a whole.'
• Example: Children make up a large proportion of the world's population.
• Here refers to size and dimensions. An athlete may have the proper proportions (size)…seems a logical sentence.

Therefore, option 4 is the most appropriate answer here.

The correct answer is- 'correctly'

Key Points

• Using 'correctly' in the blank space to make the sentence correct.
• We know that Adverbs describe 'how, when, or where' an action takes place. These are describing words of verbs. They often end with '–ly'.
• Example: Rahul sings loudly. (Here, 'loudly' describes how he sings. So, 'loudly' is an adverb.)
• Similarly, in the question, we need an adverb that will describe the verb ‘reason’.
• 'Correctly' seems an appropriate choice. (In order to reason correctly…)

The correct sentence is- In order to reason correctly it is not merely.

The correct answer is- 'Exuberance'

Key Points

• The words 'Exuberance' is a noun and it means 'the quality of feeling energetic or the behaviour of someone who feels this way.'
• Example: He maintained a youthful exuberance.

Here, the correct spelling is- Exuberance

The correct answer is- 'Mr. Pattinson said that he had brought a chocolate for me.'

Key Points

• In Direct speech, the actual words of the speaker are quoted within quotation marks and in Indirect speech, we report someone else’s statement in our own words.
• When we change the speech from Direct to Indirect, we drop the quotation marks and use the conjunction 'that' before the Indirect statement. We make suitable changes in tenses as well.
• A simple present becomes a simple past
• Eats --to-- ate
• A present continuous becomes a past continuous
• Is eating --to--was eating
• A present perfect becomes a past perfect
• Has eaten --to-- had eaten
• A simple past becomes a past perfect
• Ate--to-- had eaten
• Also, 'am' changes to 'was', 'now*'* changes to 'then*'*, 'tomorrow' changes to 'the next day' etc.
• After following the above rules:

So, keeping these points in mind, the sentence in the question, when changed from Direct to Indirect speech, becomes- Mr. Pattinson said that he had brought a chocolate for me.

The correct answer is- 'The papers have been collected by someone.'

Key Points

• In the given question the sentence 'Someone has collected the papers.' is in 'Active voice' which is in the present perfect and we know that after converted this sentence into 'Passive voice' the tense will same which also should in the present perfect.
• Present Perfect:
• Sub + has/have + V₃ + object (Active)
• Object + has/have + been + V3 + by + subject (Passive)
• Let's see some example:
• Reema has cleaned the floor (Active)
• ​The floor has been cleaned by Reema (Passive)

Hence the correct answer is- The papers have been collected by someone.

The correct sentence is- 'PRQ'

Key Points

• In the first sentence, the sequence is the one that will logically follow ‘Pablo Picasso’. Looking at the sentences given, sentence P can follow to mean ‘Pablo Picasso showed his truly…’ This seems fine as a verb follows a noun.
• The question that arises now is he showed what? Sentence R answers that question so it should follow next with sentence Q as the end of the sentence.
• Therefore, the correct sequence is PRQ, making option 3 the correct answer.

The correct sentence is- Pablo Picasso showed his truly exceptional talent from a very young age.

The correct answer is- 'Ignore'

Key Points

• 'Inquisitive' is an adjective and it means 'wanting to discover as much as you can about things, sometimes in a way that annoys people' and the opposite word of 'Inquisitive' is 'Ignore'.
• Example: She could see inquisitive faces looking out from the windows next door.

Hence the correct opposite word is Ignore.

• Let's see the other options:

The correct answer is- 'Peace'

Key Points

• 'Squall' is a noun and it means 'a sudden strong wind or short storm' and the opposite word of 'Squall' is 'Peace'.
• Example: Violent squalls signalled the approach of the hurricane.

Hence the correct opposite word is Peace.

The correct answer is- 'Apprentice'

Key Points

• 'Fledgling' is a noun and it means 'a young bird that has grown feathers and is learning to fly' so that the similar word of 'Fledgling' is 'Apprentice'.
• Example: Emily, a young and enthusiastic birdwatcher, spotted a fledgling robin perched on a low branch, still learning to fly.
• The word "apprentice" refers to a person who is learning a trade or profession under the guidance and supervision of a skilled practitioner. An apprentice typically undergoes a period of practical training and learning in order to acquire the necessary skills and knowledge for the chosen occupation.
• Example sentence: "Sarah decided to become an apprentice at a renowned bakery to learn the art of pastry-making from a master baker."
• Hence the correct similar word is Apprentice.

The correct answer is- 'Generous'

Key Points

• 'Munificent' is an adjective and it means 'very generous with money' so that the similar word of 'Munificent' is 'Generous'.
• Example: A former student has donated a munificent sum of money to the college.

Hence the correct similar word is Generous.

The correct answer is- 'far'

Key Points

• Using 'far' in the blank space to make the sentence meaningful.
• The word ‘worse’ is already in its comparative form. (worse is loosely equivalent to 'more bad')
• If we use more in the blank, it will mean this is more (more bad) worse than I thought it would be.
• So, This is not grammatically correct. So, option 3 is incorrect.
• In order to emphasize the extent or amount (of how much something is worse in this case), one can use the word 'far'.
• Example: He is performing far better than his usual.
• Therefore, the correct answer is option 1 as it fits into the sentence logically.

The correct sentence is- This is far worse than I thought it would be.

The correct answer is- 'saw'

Key Points

• Using 'saw' in the blank space to make the sentence meaningful.
• The context tells us that the people could see the storm coming.
• Let us understand the difference in the usage of the words ‘looked’ and ‘seen’.
• Looked: When we look, we make a special effort – we try to see by paying attention.
• Example: I am looking for my book but I cannot find them.
• Seen: When we see something, we notice it. We did not try to see, but that something came to our notice.
• Example: I can see him waving at me.
• So, in the given context, ‘They looked the storm approaching’ will sound illogical.
• In the logical sense, we can eliminate option 3 because no one will admire (or praise) the storm approaching.
• 'seen' is the V3 form of verb which can be used after be verbs (was, have, has, etc). As there is no helping verb before the blank, 'seen' is an incorrect option.

The correct sentence is- They saw the storm approaching.

The correct answer is- 'error lies in the part-1'

Key Points

• The word 'seasoned' should be replaced with the word 'seasonal'.
• Let us understand the difference in their meanings.
• Seasonal: happening during a particular period in the year
• Example: Seasonal fruits are cheaper to buy.
• Seasoned:  to improve the flavor of food by adding salt, herbs, or spices
• Example: We were tempted to eat the perfectly seasoned chicken
• Here, we are referring to the seasonal cycles of the planet Mars.

The correct sentence is- The rotational period and the seasonal cycles of Mars are similar to those of the Earth, as is the tilt that produces the seasons.

The correct answer is- 'error lies in the part-1'

Key Points

• Using 'Posits' in the place of 'Posit' to make the sentence correct.
• We know that 'Writing therapy' is a singular subject and it will be followed by the singular verb. The given sentence in the present indefinite.
• Structure of the present indefinite: 
• Sub + V₁ + s/es + object (positive)
• Sub + do/does + not + V₁ + object (negative)
• Example: Ram goes to market.

The correct sentence is- Writing therapy posits that writing about one's feelings gradually eases the impact of emotional trauma.

Additional Information

• The word 'Posit' means 'to suggest something as a fact or a basis for an argument or calculation'.
• Example: If we posit that wage rises cause inflation, it follows that we should try to minimize them.

‘Balance’ is used to measure ‘Mass’,

Similarly, ‘Thermometer’ is used to measure ‘Temperature’.

Hence, Thermometer : Temperature is the correct answer.

The logic followed here is:-

(1/2 × first term) × 5 = Second term

In 54 : 135

(1/2 × 54) × 5 → 27 × 5 = 135

Similarly,

In 32 : 80

(1/2 × 32) × 5 → 16 × 5 = 80

Hence, the correct answer is "80".

The logic followed here is:

Similarly,

Hence, answer is ‘TOL’.

The pattern followed here is:-

1. Ant-Insect → Ant is an insect.

2. Sketch pen-Stationery → Sketch pen is an item of stationery.

3. Parrot-Bird → Parrot is a bird.

4. Laptop-Computer → Laptop and computer do not follow any such relation.

As can be seen clearly from the above, Laptop-Computer is the odd word pair.

Hence, the correct answer is "Laptop-Computer".

Here the pattern of relation followed is Number - (Number - 4)

12 - 4 = 8

28 - 4 = 24

66 - 4 = 62

84 - 4 ≠ 76

Clearly, ‘84 - 76’ doesn’t follows the above pattern.

Hence, ‘84 - 76’ is the odd one out.

The pattern followed here is:-

1. RNJ

2. TPL

3. AWS

4. EBX

As can be seen clearly from above that EBX doesn't follow the pattern.

Hence, the correct answer is "EBX".

The correct order of the given word as they would appear in an English dictionary is as shown below:-

1. Packing
2. Pacts
3. Painless
4. Panda
5. Panic

As can be seen clearly from above that the word Packing would come at the FIRST position.

Hence, the correct answer is "Packing".

The logic followed here is,

→ 8 has been subtracted from each term to get the next term of the series.

→ (+) and (-) signs are used alternately with the terms.

Hence, the correct answer is " -20 ".

The pattern followed here is:-

Hence the correct answer is "X, J".

According to the given information,

1. Ankit walks 17 km towards east.

2. He turns left and walks 17 km.

3. He turns left again and walks 24 km to reach point A.

Straight line distance (in km) between the starting point and point A = $\sqrt {{{17}^2} + {7^2}}$ km

→ $13\sqrt 2$ km

Hence, the correct answer is ‘$13\sqrt 2$ km’.

Let's check each option,

1. RING: SURPRISING → Can be formed.

2. SPRING: SURPRISING: → Can be formed.

3. NOTHING: SURPRISING → Cannot be formed as there is no ‘O’, ‘T’, ‘H’ and two ‘N’ in it.

4. SUN: SURPRISING → Can be formed.

Hence, the correct answer is " Nothing ".

The logic followed here is:

→ Alphabets are represented by their respective place values.

MAID: 

TEAR:

Similarly,

OHMS: 

Hence, the correct answer is " 1581319 ".

Given equation: 16 - 2 + 35 × 20 ÷ 2 =?

On replacing the symbol:

16 ÷ 2 - 35 + 20 × 2

→ 8 - 35 + 40

→ 8 + 5

→ 13

Hence, the correct answer is " 13 ".

Let's check each option,

1. - and +

→ 14 + 6 × 30 ÷ 10 - 4 = 28

→ 14 + 6 × 3 - 4 = 28 

→ 14 + 18 - 4 = 28

→ 32 - 4 = 28

→ 28 = 28

→ LHS = RHS.

2) ÷ and ×

→ 14 - 6 ÷ 30 × 10 + 4 = 28.

→ 14 - 2 + 4 = 28.

→ 16 ≠ 28.

→ LHS ≠ RHS.

3) × and -

→ 14 × 6 - 30 ÷ 10 + 4 = 28.

→ 14 × 6 - 3 + 4 = 28.

→ 84 - 3 + 4 = 28.

→ 85 ≠ 28.

→ LHS ≠ RHS.

4) ÷ and -

→ 14 ÷ 6 × 30 - 10 + 4 = 28.

→ 70 - 10 + 4 = 28.

→ 64 ≠ 28.

→ LHS ≠ RHS.

Here, we can see that only Option 1 satisfy the equation.

Hence, the correct answer is " - and + ".

The logic/rule followed here is:

8&4 = 64 → (8 × 4) × 2 = 64

5&8 = 80 → (5 × 8) × 2 = 80

8&1 = 16 → (8 × 1) × 2 = 16

Similarly,

9&9 =? → (9 × 9) × 2 = 162.

Hence, the correct answer is " 162 ".

The logic followed here,

→ Y on the left side is moving one place to its right.

Hence, the correct answer is " XXXXXXYY ".

As per the given information,

1. Wagon X travels south for 4.5 km.

2. Then turns right and travels for 7.5 km.

3. Wagon Y travels 9 km North.

4. Then 3.5 km west.

5. Then 2 km North, then it turns left and travels 4 km.

Now, combining the distance and turns of both wagons X and Y, we get:

Here, we can see that Y is 15.5 km to the North of X.

Hence, the correct answer is " 15.5 km North ".

Conclusion I: No tabloids are magazines → False (As, some papers are tabloids and No magazines are papers; It is possible but not definite)

Conclusion II: All magazines are tabloids → False (As, some papers are tabloids and No magazines are papers; It is possible but not definite)

Hence, the correct answer is " Neither conclusion I nor conclusion II follows ".

Set of letters represents Equestrians who are not Fashion designers = Set of letters represents Equestrians - common part of Equestrians and Fashion designers = (I + E + G) - (E + G) = I

Hence, the correct answer is " I ".

The pattern/logic followed here is:

Hence, the correct answer is " EZI ".

The logic followed here is:

→ 6 is added to each term to get the next term of the series.

Hence, the correct answer is " 165 ".

The logic/rule/relation followed here is:

Second Number = (First Number × 3) - 1.

Third Number = (First Number × 5) - 1.

Let's check each option,

1. (12, 35, 59) → [12, (12 × 3) - 1, (12 × 5) - 1]

2. (16, 47, 79) → [16, (16 × 3) - 1, (16 × 5) - 1]

3. (19, 57, 94) → [19, (19 × 3), (19 × 5) - 1]

4. (9, 26, 44) → [9, (9 × 3) - 1, (9 × 5) - 1]

Here, we can see that Option 3 doesn't follow the logic.

Hence, the correct answer is " (19, 57, 94) ".

Hence, the correct answer is " Option 4 ".

When the unfolded cube is folded, the pair of opposite sides are,

 ⇔ 

 ⇔ 

 ⇔ 

Let's check each option,

1) 

 → Can be made.

2) 

 → Cannot be made as 

 and 

 should be opposite sides.

3) 

 → Can be made.

4) 

 → Can be made.

Here, we can see that only cube in Option 2 cannot be made.

Hence, the correct answer is " Option 2 ".

Let's check each option,

1. 24, 59, 30, 99 → E, P, D, T

2) 65, 12, 32, 24 → N, A, M, E

3. 10, 68, 14, 95 → M, X, I, V

4. 30, 85, 44, 75 → D, O, E, N

Hence, the correct answer is " 65, 12, 32, 24 ".

$1 + \frac{1}{2} + \frac{1}{4} + \frac{1}{{16}} + \frac{1}{{32}} + \frac{1}{{64}}$

$= 1 + \frac{{32 + 16 + 4 + 2 + 1;}}{{64}}$

= 1 + 55/64

≈ 1 + 1 = 2

Calculation:

⇒ (2x + 3y)/(3x - 4y) = 11/7

⇒ 14x + 21y = 33x - 44y

⇒ 65y = 19x

⇒ x/y = 65/19

∴ The correct answer is 65/19.

Shortcut Trick

Pick a value of x within the given range 1 < x < 2, for example, x = 1.5.

Substitute x = 1.5 into the expression: √((2 × 1.5 − 5)²) + 2√((1.5 − 1)²)

⇒ √((3 − 5)²) + 2√((0.5)²)

⇒ √(−2)² + 2(0.5) = 2 + 1 = 3.

∴ The correct answer is 3.

Alternate Method

Given: The range of x is 1 < x < 2.

Formula Used: √a² = |a| (the principal square root is always non-negative).

⇒ √((2x − 5)²) + 2√((x − 1)²) = |2x − 5| + 2|x − 1|

⇒ Since x < 2, 2x < 4, so (2x − 5) < 0. ∴ |2x − 5| = −(2x − 5) = 5 − 2x.

⇒ Since x > 1, (x − 1) > 0. ∴ |x − 1| = x − 1.

⇒ Expression = (5 − 2x) + 2(x − 1)

⇒ 5 − 2x + 2x − 2

⇒ 5 − 2 = 3.

∴ The correct answer is 3.

Additional Information

Modulus Property of Square Roots

The relation √x² = |x| is a fundamental identity. It ensures that the result of a square root is never negative, regardless of the sign of the variable x.

Definition of Absolute Value

|a| = a if a ≥ 0 and |a| = −a if a < 0. In interval-based problems, identifying the sign of the inner expression is key to removing the modulus.

Linear Inequalities

When multiplying an inequality by a positive number, the sign remains the same. For 1 < x < 2, multiplying by 2 gives 2 < 2x < 4.

Concept used:

For system of linear equation in 2 variable i.e., a₁x + b₁y + c₁ = 0 and a₂x + b₂y + c₂ = 0 to be inconsistent:

⇒ a₁/a₂ = b₁/b₂ ≠ c₁/c₂

Calculation:

For the system 7x + 8ky - 16 = 0 and 14x + 112y - 21 = 0 to be inconsistent

Here a₁ = 7; a₂ = 14; b₁ = 8k; b₂ = 112; c₁ = - 16; c₂ = - 21

⇒ a1/a2 = b1/b2 ≠ c1/c2

⇒ b1/b2 = a1/a2

⇒ 8k/112 = 7/14

⇒ k = (7 × 112)/(14 × 8) 

⇒ k = 7

∴ The correct answer is 7.

Given:

∠BIC = 125° 

'I' is the incenter of the Δ ABC

Concept used:

If 'I' is the incenter, then

∠BIC =  90° + (1/2) × ∠BAC

Calculation:

In ΔABC,

∠BIC = 90° + (1/2)∠BAC

125° = 90° + (1/2)∠BAC

∠BAC = 70°

∴ The correct answer is 70°.

Alternate MethodCalculation:

As, Incentre of the triangle is the point of intersection of triangle’s three angle bisectors so,

∠IBC = ∠IBA

∠ICB = ∠ICA

In the triangle BIC, by angle sum property

⇒ ∠IBC + ∠ICB + ∠BIC = 180°

⇒ ∠IBC + ∠ICB + 125° = 180°

⇒ ∠IBC + ∠ICB = 55°

⇒ 2(∠IBC + ∠ICB) = 2 × 55°

⇒ 2∠IBC + 2∠ICB = 110°

⇒ ∠ABC + ∠ACB = 110°

Now, by angle sum property in triangle ABC

∠BAC = 180° - (∠ABC + ∠ACB) = 180° - 110° = 70°

∴ The correct answer is 70°.

Calculation:

The point where the triangle forms the right angle in the right-angled triangle is known as the ortho center.

∴ Option 4 is the correct answer.

Given:

A has thrice as much amount as that of B.

B has 40% more amount than C.

The average amount of all three of them is Rs. 1320.

Concept used:

Average = (sum of all observations)/(total number of observations)

Calculation:

Let the amount with C be Rs. a

Amount with B = a + 40% of a = 1.4a

Amount with A = 3 × 1.4a = 4.2a

By using the above concept, 

Average = (4.2a + 1.4a + a)/3

⇒ 1320 = 6.6a/3         (∵ average = 1320 given)

⇒ a = 600

⇒ A =  Amount with A = 4.2 × 600 = Rs. 2520

∴  The ammount of A is Rs. 2520. 

Alternate MethodCalculation:

According to the question:

A : B = (3 : 1) × 7 = 21 : 7

B : C = (7 : 5)

So, A : B : C = 21 : 7 : 5

Now, (21 + 7 + 5)/3 = Average of (A, B and C)

33 units = 1320 × 3

1 unit = Rs.120

Amount of A = 21 × 120 = Rs.2520

∴ The correct answer is Rs.2520.

Given:

Ratio of marks of two candidates = 4 : 7

Calculation:

Let the marks of the candidate = 4x, and 7x

So 4x = 140

⇒ x = 140/4

⇒ 7x = (140/4) × 7 = 245

∴ The correct answer is 245.

Calculation:

Let x kg of salt costing Rs.13/kg is mixed with y kg of salt costing Rs.7/kg then

⇒ 13x + 7y = 9(x + y)

⇒ 13x + 7y = 9x + 9y

⇒ 4x = 2y

⇒ x/y = 2/4 = 1/2

∴ Required Ratio = 1 ∶ 2

Shortcut TrickCalculation:

So the required ratio = 2 : 4 = 1 : 2

∴ The correct answer is 1 : 2.

Calculation:

Sum of age of 8 members = Average Age of 8 members × 8

Sum of age of 8 members = 36 × 8

Sum of age of 8 members = 288

Now, if we exclude the youngest member

Sum of age of remaining members = 288 - 32 = 256

Required average = 256/7 = 36.57

∴ The correct answer is 36.57.

Given:

Principal = Rs.10000

Formula used:

Amount= P × {1 + (R/100)}^t

C.I = Amount - Principal

Calculation:

When compounded annually,

C.I = (10000 × 18 × 1)/100

C.I = Rs.1800

When compounded half yearly,

⇒ Rate = 18/2 = 9%

⇒ Time = 2 × 1 = 2

Amount =  P × {1 + (R/100)}t

⇒ 10000 × {1 + (9/100)}²

⇒ 10000 × (109/100)²

⇒ Rs.11881

C.I = (11881 - 10000) = Rs.1881

Required difference = 1881 - 1800 = Rs.81

∴ The correct answer is 81.

Calculation:

Let the cost of 1 kg sugar be Rs.x

Actual Cost price = (680/1000) × x = 0.68x

Loss = 16% of x = 0.16x

Selling price = x - 0.16x = 0.84x

Profit % = {(SP - CP)/CP} × 100 = {(0.84x - 0.68x)/0.68x} × 100 = 23.52%

∴ The correct answer is 23.52%.

Alternate MethodCalculation:

Fraction of 16% = 4/25

Overall C.P : S.P = 17 : 21

Profit % = {(21 - 17)/17} × 100 = 23.52%

∴ The correct answer is 23.52%.

Calculation:

Effective discount = [5 + 15 - {(5 × 15)/100}] % = 19.25%

Marked price = Rs.2000

Discount = 19.25% of 2000

⇒ (19.25/100) × 2000 = Rs. 385

∴ The correct answer is Rs. 385.

Calculation:

⇒ √(3 - 2√2)/ (3 + 2√2)

⇒ √{(3 - 2√2)(3 - 2√2)} / {(3 + 2√2)(3 - 2√2)}

⇒ √(3 - 2√2)² / (9 - 8)

⇒ √(3 - 2√2)² / 1

⇒ 3 - 2√2

∴ The correct answer is 3 - 2√2.

Calculation:

Let the number of men be x

Time taken = 10 days

Now, after increment,

Number of men = (x + 3)

Time taken = 10 - 2 = 8

Now, as work done is equal

⇒ x × 10 = (x + 3) × 8

⇒ 10x = 8x + 24

⇒ 2x = 24

⇒ x = 12

∴ The correct answer is 12.

Given:

Speed of boy = 3 km/hr

Time to cover the distance = 3 h 40 minutes

Calculation:

Speed of walking = 3 km/hr

Time taken by walking = 3 hours 40 min = 3 + (40/60) = 3 + (2/3) = 11/3 hours

Distance covered by walking = speed × time = 3 × (11/3) = 11 km

Time taken by cycle = 11 hours

Speed of cycle = distance/time = 11/11 = 1 km/hr

∴ The correct answer is 1 km/hr.

Shortcut TrickConcept used:

If the distance is constant, then

Speed ∝ (1/time)

Calculation:

According to the question:

Total Time taken to cover the distance while walking = 3 hr 60 = 11/3 hrs

Now 

So, 

11 units = 3 km/hr

1 unit = 3 /11

11/3 units = 3/11 × 11/3 = 1 km/hr

∴ The correct answer is 1 km/hr.

Calculation:

According to the pie chart, the least number of elephants are in sanctuary B because the percentage of B is least.

∴ The correct option is 4.

Calculation:

Number of elephants in Sanctuary F = 10% of all sanctuaries = 400

Total number of elephants in all sanctuaries = (100/10) × 400 = 4000

∴ The correct answer is 4000.

Calculation:

Measure of central angle of the sector representing the number of elephants in Sanctuary D = (10/100) × 360 = 36°

∴ The correct answer is 36°.

Calculation:

Number of elephants in Sanctuary F = 10% of all sanctuaries = 400

So, total number of elephants in all sanctuaries = (100/10) × 400 = 4000

Average area occupied by each elephant = 50 sq. km

Total area occupied of these sanctuaries = 50 × 4000

⇒ 200000 sq. km = 200 (in 1000 sq. km)

∴ The correct answer is 200 (in 1000 sq. km).

Given

The area of an equilateral triangle is 36√3 cm²

Formula used:

Area = (√3/4) × side²

Calculation:

⇒ (√3/4) × side² = Area

⇒ (√3/4) × side² = 36√3

⇒ side² = 144

⇒ side = 12

∴ side = 12 cm

Given:

Sum of all interior angles = 540° 

Formula used:

Sum of all interior angles = (n - 2) × 180°.

Calculation:

Let the regular polygon have 'n' sides.

According to the question:

⇒ (n - 2) × 180° = 540°

⇒ n - 2 = 3

⇒ n = 5

∴ The correct answer is 5.

Given:

Curved surface area = 132 cm²

Diameter = 7 cm

Formula used:

Curved surface area = 2 × π × radius × height

Calculation:

Radius = diameter/2 = 7/2 cm

2 × π × radius × height = Curved surface area

⇒ 2 × (22/7) × (7/2) × height = 132

⇒ Height = 6 cm

∴ The correct answer is 6 cm.

Given:

ΔXYZ is right angled at Y

∠X = 30o

Calculation:

m ∠Y = 90° and m ∠X = 30°

By angle sum property,

⇒ m ∠Z = 180° - (m ∠X + m ∠Y) = 180° - (90° + 30°) = 60°

Now,

cos Z + (1/3) = cos60° + (1/3)

⇒ (1/2) + (1/3) = 5/6 

∴ The correct answer is 5/6.

Given:

ΔXYZ measure of angle Y is 90o.

XY - 16 cm

Tan X = 15/8

Calculation:

According to the question:

tan X = 15/8

⇒ YZ/XY = 15/8

⇒ YZ = 15k and XY = 8k

Now,

⇒ 8k = 16

⇒ k = 2

⇒ YZ = 15k = 15 × 2 = 30 cm

∴ The correct answer is 30 cm.

• John Maynard Keynes was the British economist who gave very substantial contributions in the field of Macroeconomics.
• He classified the money in two categories in accordance with the nature of money in which it is used. His contribution in the Economics is known as the Keynesian Economics.

The correct answer is Small Industry.

Key Points

• SIDO stands for Small Industry Development Organisation which is an organisation which helps different small industries to grow.

The correct answer is Devraya I

Key Points

• Tajuddin Firuz’s biggest victory was to make a marriage alliance with the Vijayanagar Empire after getting married with daughter of Deva Raya I.

Additional Information

The correct answer is Shaha Jahan.

Key Points

• The Vakil was the royal deputy. It was a post filled only twice under the seven great Mughal emperors.
• At the end of Akbar’s reign, the office of Vakil became ‘more or less honorific’ and continued till the reign of Shah Jahan.

Additional Information

• Akbar
• He reformed and strengthened his central administration and also centralized his financial system and homeithe tax-collection procedures.
• Though he never renounced Islam, he took an active interest in other religions, motivating Hindus, Zoroastrians and Christians as well as Muslims, to engage in religious discussions before him.
• Illiterate himself, he encouraged scholars, poets, painters and musicians, making his court the center of culture.
• Jahangir
• Jahangir was a ruler interested in literature, music, painting and architecture.
• During his reign, British officers William Hawkins and Sir Tomas Rowe appeared in the Mughal court.
• Jahangir wrote his autobiography titled 'Tujuk-e-Jahangiri'.
• Aurangzeb​
• Aurangzeb was a ruler of Mughal dynasty.
• He was the son of Shah Jahan.
• He died in the year 1707.
• He imposed Jizya, a military tax on non-Muslims who were not fighting for Mughal Empire.
• He was succeeded by his son Bahadur Shah I.
• Aurangzeb was also known as 'Zinda Pir' because of his simple lifestyle.

The correct answer is Caroni. 

Key Points

• Angel falls is the world’s highest waterfall which is uninterrupted. It is located in Venezuela, South America.
• Angel falls is named after the famous aviator Jim Angel.
• It is on the river Churun, which is a tributary of Caroni River

Additional Information

• The Amazon River :
• It runs through the Amazon rainforest is the world’s second-longest river after the Nile.
• It is also the world’s largest by water volume.
• It comprises hundreds of waterways that stretch across 6,840 km.
• It has 17 tributaries that drain 55 million gallons of water every second into the Atlantic Ocean.
• ​Orinoco
• The Orinoco river originates from the Western Cordillera and falls into the Caribbean Sea.
• ​Parana River
• Formed at the confluence of the Paranaiba and the Rio Grande rivers in southern Brazil.

The correct answer is 8o 4 N.

Key Points

• ​India is situated north of the equator between 8°04' to 37°06' north latitude and 68°07' to 97°25' east longitude. The southern boundary of India's mainland is 8°04'.
• The southernmost point ofthe Indian Union– ‘Indira Point’ got submerged underthe sea water in 2004 during the Tsunami.

Important Points

The correct answer is Agam.

Key Points

• Jain literature is contained in the Agam in which a number of Jain texts are there in the Ardha-MaghdiPrakrit language.
• The basic philosophy of the Jainas was already in existence in north India before the birth of Vardhamana, who came to be known as Mahavira, in the sixth century BCE.

Important Points

Additional Information

• Agamas
• The texts containing the teachings of Mahavira are called the Agamas and are the canonical literature - the scriptures - of Svetambara Jainism. Mahavira's disciples compiled his words into texts or sutras and memorized them to pass on to future generations.
• Kalpa Sutra
• It was written by Bhadrabahu.
• It contains the biographies of the Jain Tirthankaras, most notably Parshvanath and Mahavira, including the latter’s Nirvana. Since Bhadrabahu was a teacher of Chandragupta Maurya, we can say that it was compiled in Mauryan Era.
• Sutta Pitaka
• The Basket of Discourse- contains sermons and doctrinal and ethical discourses attributed to the Buddha or sometimes to his disciples.

• India and Australia inaugurated their Foreign Secretaries and defence Secretaries dialogue in 2017.
• It was a great step towards the improvisation of the bilateral relations of in different areas along with the defence co-operation.

The correct answer is NITI Aayog.

Key Points

• Dr. Vinod Paul:-
• He is member of NITI Aaayog and the first Indian to win this prestigious award which is conferred by the WHO on the behalf of IhsanDogramaci Family Health Foundation.
• He has done extraordinary world in the area of family health and for his work he has been awarded with this Global Award.
• He was also the Chairman of The Board of Governors of the Medical Council of India.

Additional Information

• World Health Organization:-
• It is a specialized agency of the United Nations responsible for international public health.
• The WHO was established by the constitution on 7 April 1948, which is commemorated as World Health Day.
• The headquarters of the World Health Organisation (WHO) is located in Geneva, Switzerland.
• Tedros Adhanon is the Director-General of the World Health Organization.

• Nepali language is written in Devanagari script. Devanagari script is used for the 120 Indo-Aryan Languages which include Hindi, Nepal, Marathi, Awadhi and Newari.
• This script written from left to right.
• The Seventy-first Amendment of the Constitution of India amended the Eighth Schedule to the Constitution so as to include Konkani, Meitei (Manipuri) and Nepali languages.

The correct answer is Equivalent and Molecular weight of NaCl is 58.5

Key Points

• Equivalent weight - The weight of the substance that contains or reacts with 1.0078 g of hydrogen or 8 g of oxygen, or 35.45 g of chlorine.
• Molecular weight - Molecular mass is the sum of atomic masses of the elements present in a molecule. It is obtained by multiplying the atomic mass of each element by the number of its atoms and adding them together.

Important Points

• Salt (NaCl), sodium chloride, mineral substance of great importance to human and animal health, as well as to industry. The mineral form halite, or rock salt, is sometimes called common salt to distinguish it from a class of chemical compounds called salts.

The correct answer is Ultrasonic waves

Key Points

• All of these are electromagnetic waves except Ultrasonic waves which are sound waves and cannot propagate through vacuum.
• All other waves, like X-rays, Radio waves and UV-rays can propagate through vacuum.
• The dog, mouse, bat, dolphin etc. have a special ability to hear ultrasonic sounds. Thus, they can sense some noise which are inaudible to us. Children under 5 years of age and some creatures and insects can hear waves with frequency up to 25 kHz. Bats, mice, dolphins, etc., can also produce ultrasound.

The correct answer is No option is correct.

Key Points

• According to Indian Constitution, Government is run on the three levels which include local, state, and National levels.

The correct answer is 2.

Key Points

• This idea of people's participation in the Panchayati Raj system extends to two other levels.
• One is the Block level, which is called the JanpadPanchayat or the Panchayat Samiti.
• The Panchayat Samiti has many GramPanchayats under it.
• Above the Panchayat Samiti is the District Panchayat or the Zila Parishad.
• The Zila Parishad actually makes developmental plans at the district level.
• With the help of Panchayat Samitis, it also regulates the money distribution among all the Gram Panchayats.

The correct answer is Both motile and small

Key Points

In sexual reproduction, the male gametes (sperm cells) are generally both motile and small.

• Motility: Male gametes are typically motile, meaning they have the ability to move on their own. This is primarily achieved through the flagellum, a whip-like structure that propels the sperm forward. The motility of sperm is crucial for successful fertilization, as sperm need to travel through the female reproductive tract to reach and penetrate the egg.
• Size: Male gametes are also generally smaller compared to female gametes (eggs). This small size allows sperm to be produced in large quantities and is advantageous for their role in fertilization. Smaller size facilitates easier movement and efficiency in reaching the egg, increasing the chances of successful fertilization.
• The human males have 23 pairs of chromosomes including XY sex chromosomes. Therefore the male gametes has 22 chromosomes and either an X or a Y chromosome. Thus male gametes can be of two types:22+X or 22+Y.
• Female gametes are called egg or ova.