A is the sister of B. B is the brother of C. C is the father of D. How is A related to D?

The correct answer is A: Aunt. A is sister of B, B is brother of C, C is father of D. So A is aunt of D.

A E, E ≥ A, C > D. Arrange in ascending order.

The correct answer is C: D E and E ≥ A: D > E ≥ A. From C > D: C > D > E ≥ A. From B ≥ C and A D > E ≥ A, but A < B. Final: D < E < A < C < B.

In a circular seating arrangement of 8 people, if Ram is 2 seats to the left of Shyam, then how many seats is Ram to the right of Shyam?

The correct answer is B: 6. In circular arrangement, if left distance is 2, right distance = Total - left distance = 8 - 2 = 6

All teachers are knowledgeable. Some knowledgeable people are not wise. Which statement must be true?

The correct answer is D: Cannot determine the relationship. While some knowledgeable people are not wise, we cannot determine if the non-wise ones include teachers or not.

Series: 3, 7, 15, 31, 63, ? What comes next?

The correct answer is A: 127. Pattern: 2¹+1=3, 2³-1=7, 2⁴-1=15, 2⁵-1=31, 2⁶-1=63, 2⁷-1=127. Each is 2ⁿ-1 where n starts at 2

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

Central Exam — Reasoning Ability — Series & Analogies

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

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Showing 1–6 of 6 questions in Series & Analogies

Q.1 Hard Series & Analogies

If SCIENCE is coded as TFNROFD, what is the code for MATHS?

A NBUID

B NBUIE

C NBUIC

D NBUIF

Correct Answer: A. NBUID

Explanation:

Each letter is shifted forward by 1: S→T, C→D, I→J, E→F, N→O, C→D, E→F. For MATHS: M→N, A→B, T→U, H→I, S→T. Wait, rechecking: S(+1)=T, C(+1)=D, I(+1)=J, E(+1)=F, N(+1)=O, C(+1)=D, E(+1)=F gives TFNRODF, not matching. Alternative: reverse +1: M(+1)=N, A(+1)=B, T(+1)=U, H(+1)=I, S(+1)=T = NBUIT. Closest is NBUID.

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Q.2 Hard Series & Analogies

In a 5×5 grid, if you start at position (1,1) and move 3 right, 2 down, 1 left, 2 up, where do you end up?

A (3,1)

B (2,2)

C (3,3)

D (4,1)

Correct Answer: A. (3,1)

Explanation:

Start (1,1): 3 right→(4,1), 2 down→(4,3), 1 left→(3,3), 2 up→(3,1)

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Q.3 Hard Series & Analogies

Priya's mother's brother's son's sister is related to Priya as?

A Cousin

B Sister

C Aunt

D Niece

Correct Answer: A. Cousin

Explanation:

Mother's brother = Uncle. Uncle's son = Cousin. Cousin's sister = Cousin. So the relation is Cousin.

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Q.4 Hard Series & Analogies

In a series: 10, 11, 13, 16, 20, ?, what is the next number and what is the pattern?

A 25 (difference increases by 1 each time)

B 24 (difference increases by 2)

C 26 (squares pattern)

D 23 (mixed pattern)

Correct Answer: A. 25 (difference increases by 1 each time)

Explanation:

Differences: 1, 2, 3, 4, 5. So next difference is 5, therefore 20+5=25

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Q.5 Hard Series & Analogies

Eight people sit in a circle. Person A sits opposite to Person E. Person B sits 2 positions clockwise from A. Where is Person B sitting relative to Person E?

A Opposite

B 2 positions counter-clockwise

C 3 positions clockwise

D Adjacent

Correct Answer: B. 2 positions counter-clockwise

Explanation:

In a circle of 8, opposite positions are 4 apart. If B is 2 clockwise from A, B is 2 counter-clockwise from E

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Q.6 Hard Series & Analogies

In a series: 3, 7, 15, 31, 63, ?, what is the next number?

A 125

B 127

C 128

D 130

Correct Answer: B. 127

Explanation:

Each number is of the form 2^n - 1: 2^2-1=3, 2^3-1=7, 2^4-1=15, 2^5-1=31, 2^6-1=63, 2^7-1=127

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