Reasoning PYQs

Preparing the family tree using the following symbol:

Family tree

∴ D is Father of A.

Hence, the correct answer is “Option 1”.

• 3 × 2 = 6

• 6 × 3 = 18

• 18 × 6 = 108

Now, pattern of multiplication: 2, 3, 6, ?

Check pattern: 2 × 1 = 2, 2 × 1 × 1? Let's try simple factor: 2, 3, 6, 108 × ?

Notice ratio:

6 ÷ 3 = 2, 18 ÷ 6 = 3, 108 ÷ 18 = 6 ⇒ Next ratio = 108 ÷ ? = ?

Pattern of multipliers: 2, 3, 6, 18 (previous × next multiplier?)

• 3 × 2 = 6

• 6 × 3 = 18

• 18 × 6 = 108

• 108 × 18 = 1944

∴ Next term = 1944

Find difference between consecutive terms:

9 - 5 = 4

17 - 9 = 8

33 - 17 = 16

65 - 33 = 32

⇒ Differences: 4, 8, 16, 32 (each double the previous)

Next difference = 32 × 2 = 64

Next term = 65 + 64 = 129

∴ The missing term is 129

Statement: The government has announced a reduction in LPG subsidies.

Conclusions:

I. Citizens will now have to pay more for LPG → Follow (if subsidies are reduced, the financial support decreases, so people generally have to pay more).

II. The government has no money left → Does not follow (reduction in subsidy does not necessarily mean the government has no money; there could be many other reasons (policy change, budget reallocation, etc)). 

Only Conclusion I follows.

Hence, the correct answer is “Option 1”.

⇒ Statement mentions intermittency ⇒ Assumption I is required ✅

⇒ Statement does not mention cost barriers or subsidies ⇒ Assumption II is not required ❌

⇒ Statement says large-scale adoption requires energy storage for grid stability ⇒ Assumption III is required ✅

∴ Assumptions I and III are correct

Statement: Traffic violations have decreased after the installation of speed cameras.

Conclusions:

I. Surveillance discourages rule-breaking → Follow (because the decrease in violations is linked to the presence of cameras (a form of surveillance), suggesting people are avoiding breaking rules due to monitoring).

II. People respect traffic rules voluntarily → Does not follow ( the statement does not say people are following rules on their own. It suggests behavior changed due to cameras, not voluntary respect)

Only Conclusion I follows.

Hence, the correct answer is “Option 1”.

Explanation:

Option 1 and Option 3 exactly match the given address.

Option 2 is different due to "18-B" instead of "18B".

Option 4 is different because "New Delhi" is used instead of "Delhi".

Thus, the identical addresses are 1 and 3.

Hence, the correct answer is "Option 2"

PLANET is to EAP LNT

Similarly,

TARGET is to:

Hence, the correct answer is “Option 3”.

Logic Used:

⇒ Jawaharlal Nehru → Prime Minister ✔

⇒ Indira Gandhi → Prime Minister ✔

⇒ Atal Bihari Vajpayee → Prime Minister ✔

⇒ Narendra Modi → Prime Minister ✔

⇒ Rajiv Gandhi → Prime Minister ✔

⇒ Sardar Vallabhbhai Patel → Deputy Prime Minister ✖

∴ Odd one out  Sardar Vallabhbhai Patel.

Logic Used:

Rearrange letters to form a meaningful weapon name

R E P S A ⇒ Arrange letters → S P E A R

( A long stick weapon with a sharp pointed metal tip).

∴ The correct answer is option (2).

Pattern followed here is,

Hence, the correct answer is “Option 1”.

Logic Used:

Check category → Soil or Rock

⇒ Alluvial Soil → Type of Soil ✔

⇒ Black Soil → Type of Soil ✔

⇒ Red Soil → Type of Soil ✔

⇒ Igneous Rock → Type of Rock ✖

∴ Odd one out Igneous Rock.

Logic Used:

Each letter −1 position in alphabet

Similarly,

Hence, the correct answer is “Option 2”.

Shortcut Trick

Convert the percentage into a fraction: 25% = 1/4.

Here, 1 unit (the numerator) represents the given value, and 4 units (the denominator) represents the original number.

Since 1 unit = 15, then 4 units = 15 × 4 = 60.

∴ The correct answer is 60.

Alternate Method

Given:

25% of a certain number = 15

Formula Used:

Number = (Given Value ÷ Percentage Rate) × 100

⇒ Let the original number be x.

⇒ According to the question, 25% of x = 15

⇒ (25 ÷ 100) × x = 15

⇒ (1 ÷ 4) × x = 15

⇒ x = 15 × 4

⇒ x = 60

∴ The correct answer is 60.

Additional Information

Percentage to Fraction Conversion

Standard conversions: 25% = 1/4, 50% = 1/2, 75% = 3/4, 20% = 1/5, and 10% = 1/10.

Reverse Percentage Calculation

To find the original value when x% is given as y, use the formula: Original Value = (y × 100) ÷ x.

Base Change Property

If A is 25% of B, then B is (100 ÷ 25) × 100 = 400% of A.

Logic Used:

Pattern → a * b = a × b × 3

Calculation:

6 *  3 = 6 × 3  × 3 = 54

8 * 2 = 8 × 2  × 3 = 48 

5 * 4 = 5 × 4  × 3 = 60

∴ The correct answer is option (4).

Logic Used:

Pattern → a² + b²

Calculation:

2 @ 3

⇒ 2² + 3²

⇒ 4 + 9 = 13 

3 @ 4

⇒ 3² + 4²

⇒ 9 + 16 = 25 

4 @ 5

⇒ 4² + 5²

⇒ 16 + 25 = 41

∴ The correct answer is option (3).

Given:

Total mixture = 30 L

Milk : Water = 3 : 2

Calculation:

Milk = 30 × 3/5 = 18 L

Water = 30 × 2/5 = 12 L

Let milk added = x L

New milk = 18 + x

Water = 12

Required ratio = 4 : 1

⇒ $\dfrac{18 + x}{12} = \dfrac{4}{1}$

⇒ 18 + x = 48

⇒ x = 30 L

∴ The correct answer is option (3).

Given Equation : 8 ÷ 2 x 3 + 18 - 6 = ?

'+' means 'divided by' '-' means 'multiplied by' 'x' means 'minus' '÷' means 'plus'

After interchanging the signs

⇒ 8 + 2 - 3 ÷ 18 x 6=?

⇒ 8 + 2 - (1 / 6 ) x 6=?

⇒ 10 -1 = 9

∴ The correct answer is option (1).

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

Pointing to a boy, a man said, "He is the son of my wife's sister's husband." How is the boy related to the man?

Explanation:

Wife's sister → Sister-in-law

Wife's sister's husband → Brother-in-law of the man

Son of the man's brother-in-law → Nephew

Conclusion:

Clearly, the boy is the Nephew of the man.

Hence, 'Nephew' is the correct answer.

Given Equation :  36 + 6 - 2 × 3 = ?

'+' means 'divided by' '-' means 'multiplied by' '×' means 'minus' '÷' means 'plus'

⇒ 36 + 6 - 2 × 3 = ?

⇒ 36 ÷ 6 × 2 - 3 = ?

⇒ 6 × 2 - 3 = ?

⇒ 12 - 3 = 9

∴ The correct answer is option (4).