Pen : Write :: Knife : ?

The correct answer is B: Cut. Pen is used to write; Knife is used to cut. Tool to its primary function

CLOCK is to TIME as THERMOMETER is to ?

The correct answer is B: Temperature. A clock measures time. A thermometer measures temperature. The relationship is instrument to quantity it measures.

All organic produce is healthy. Some healthy foods are affordable. No expensive item is affordable. Which conclusion is correct?

The correct answer is B: Some organic produce may not be expensive. Some healthy foods are affordable. Since all organic produce is healthy, some organic produce could be among those affordable healthy foods, hence some organic produce may not be expensive.

Series: 2, 6, 12, 20, 30, ? What comes next?

The correct answer is B: 42. Pattern: 1×2=2, 2×3=6, 3×4=12, 4×5=20, 5×6=30, 6×7=42. Each term is n(n+1) where n increases by 1

Six people sit around a circular table. Q is 2 positions clockwise from P. R is 1 position counterclockwise from P. If P is at position 1, where is R?

The correct answer is B: Position 6. P at position 1. Q is 2 clockwise: position 3. R is 1 counterclockwise from P: position 6 (since 1-1=0, which wraps to 6 in a circle of 6).

Central Govt Exam Preparation — SSC, UPSC, Bank, Railway

Central Exam — Reasoning Ability — Coding-Decoding

UPSC · SSC · Bank · Railway · NDA — Central Government Exam MCQ Practice

6 Questions 10 Topics Take Test

Showing 1–6 of 6 questions in Coding-Decoding

Q.1 Hard Coding-Decoding

Five friends are sitting in a circle. A sits opposite to C. B sits to the right of A. D is not adjacent to A. How many positions can E occupy?

A 1

B 2

C 3

D 4

Correct Answer: B. 2

Explanation:

In circle of 5: A-B-?-D-C or A-?-D-?-C patterns. With constraints, E can occupy 2 specific positions maintaining the circular arrangement.

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Q.2 Hard Coding-Decoding

In a family, there are 6 members. X is married to Y. X has two children with Y. Z is brother of X. Z is married to W. W has sister V. How many females are there (minimum)?

A 2

B 3

C 4

D 5

Correct Answer: B. 3

Explanation:

Y (wife), W (wife), V (sister). Minimum 3 females identified. Children's gender unspecified.

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Q.3 Hard Coding-Decoding

All students are learners. Some learners are successful. All successful people are happy. Which is definitely true?

A All students are happy

B Some students are happy

C Some learners are happy

D All learners are happy

Correct Answer: C. Some learners are happy

Explanation:

Some learners are successful, and all successful people are happy, therefore some learners are definitely happy.

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Q.4 Hard Coding-Decoding

Statement: All politicians are ambitious. Some ambitious people are corrupt. Conclusion: Some politicians are corrupt.

A The conclusion follows

B The conclusion does not follow

C Data is insufficient

D Definitely false

Correct Answer: B. The conclusion does not follow

Explanation:

Though all politicians are ambitious and some ambitious people are corrupt, we cannot conclude that the corrupt ones are from the politician group.

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Q.5 Hard Coding-Decoding

In a circular arrangement of 8 people, if person A is at position 1 and person B is directly opposite, at what position is B?

A 3

B 4

C 5

D 6

Correct Answer: C. 5

Explanation:

In a circle of 8, position 1 is opposite to position (1+8/2)=5. So B is at position 5.

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Q.6 Hard Coding-Decoding

A, B, C, D, E are sitting in a circle. A is opposite to C. B is to the immediate right of A. D is between C and E. Who sits to the immediate left of C?

A E

B D

C B

D A

Correct Answer: A. E

Explanation:

In circle: A-B (right of A)-E-D-C (opposite to A). From C going left: C-D-E-B-A. So A sits to the immediate left of C when going counterclockwise

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