If DEAR is coded as 4-5-1-18, then CARE is coded as:

The correct answer is A: 3-1-18-5. D=4, E=5, A=1, R=18 (position from end of alphabet: D=23→4, E=22→5, A=26→1, R=9→18). For CARE: C=3, A=1, R=18, E=5 = 3-1-18-5.

If PENCIL is coded as 16-5-14-3-9-12, how is ERASER coded?

The correct answer is A: 5-18-1-19-5-18. Using position values: E=5, R=18, A=1, S=19, E=5, R=18.

Some vegetarians are athletes. All athletes maintain discipline. Conclusions: I. Some vegetarians maintain discipline. II. All vegetarians are disciplined. Which conclusion(s) follow?

The correct answer is A: Only I follows. Some vegetarians are athletes, and all athletes maintain discipline. Therefore, some vegetarians (the athlete ones) maintain discipline. I follows. II doesn't follow as not all vegetarians are athletes.

All squares are rectangles. All rectangles are quadrilaterals. Therefore, all squares are quadrilaterals. What type of reasoning is this?

The correct answer is A: Deductive. This follows the logical chain from general to specific, which is deductive reasoning (syllogism).

Find the odd one out: NOTEBOOK, PENCIL, ERASER, SHARPENER, BOOK

The correct answer is B: SHARPENER. All others are writing/reading materials or have written content. Sharpener is a tool for maintenance.

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Reasoning Ability
Series & Analogies

Critical thinking and logical reasoning questions

23 Q 8 Topics Take Mock Test

Difficulty: All Easy Medium Hard 11–20 of 23

Topics in Reasoning Ability

All Puzzles & Seating Arrangement 172 Syllogism 50 Coding-Decoding 50 Blood Relations 50 Direction & Distance 50 Inequalities 50 Series & Analogies 50 Ranking & Order 50

Q.11 Medium Series & Analogies

In a series: 121, 144, 169, 196, 225, ?, what is the next number?

A 256

B 264

C 289

D 324

Correct Answer: C. 289

EXPLANATION

These are perfect squares: 11², 12², 13², 14², 15², 16², 17². Next is 17² = 289

Test

Q.12 Medium Series & Analogies

In a series: 5, 11, 19, 29, 41, ?, what is the next number?

A 55

B 53

C 52

D 54

Correct Answer: A. 55

EXPLANATION

Differences are: 6, 8, 10, 12, and next difference is 14. So 41 + 14 = 55

Test

Q.13 Medium Series & Analogies

Five people sit in a row: P, Q, R, S, T. Q is to the right of P. S is to the left of R. T is at the rightmost end. R is immediately to the right of Q. What is the correct arrangement?

A P Q R S T

B P Q R T S

C S P Q R T

D P S Q R T

Correct Answer: C. S P Q R T

EXPLANATION

From constraints: R is immediately right of Q, T is rightmost, S is left of R. So: S-P-Q-R-T satisfies all conditions

Test

Q.14 Medium Series & Analogies

If MOTHER is coded as NPUIFS, what is the code for FATHER?

A GBUFIS

B GBSGFR

C FBUHMR

D GBUHFS

Correct Answer: A. GBUFIS

EXPLANATION

Each letter is shifted by 1 position forward in alphabet. F→G, A→B, T→U, H→I, E→F, R→S

Test

Q.15 Medium Series & Analogies

In a series: 1, 4, 9, 16, 25, 36, ?, what is the pattern?

A 49

B 42

C 50

D 48

Correct Answer: A. 49

EXPLANATION

Perfect squares: 1², 2², 3², 4², 5², 6², 7² = 49

Test

Q.16 Medium Series & Analogies

Four friends A, B, C, D sit in a line. A is to the left of B. C is to the right of B. D is to the left of A. What is the correct order?

A DABC

B ABCD

C DCAB

D ADBC

Correct Answer: A. DABC

EXPLANATION

D is left of A, A is left of B, C is right of B. So order is D-A-B-C

Test

Q.17 Medium Series & Analogies

In a series: 2, 5, 10, 17, 26, ?, what is the next term?

A 37

B 35

C 39

D 41

Correct Answer: A. 37

EXPLANATION

Pattern: n² + 1: 1²+1=2, 2²+1=5, 3²+1=10, 4²+1=17, 5²+1=26, 6²+1=37

Test

Q.18 Medium Series & Analogies

Analogy: Pen is to Writing as Knife is to?

A Sharp

B Cutting

C Metal

D Handle

Correct Answer: B. Cutting

EXPLANATION

Pen is a tool used for Writing. Knife is a tool used for Cutting. The relationship is Tool to Action.

Test

Q.19 Medium Series & Analogies

If some poets are writers and all writers are artists, which conclusion is definitely true?

A Some poets are artists

B All poets are artists

C Some writers are not poets

D No poets are artists

Correct Answer: A. Some poets are artists

EXPLANATION

Some poets are writers, and all writers are artists. Therefore, at least some poets must be artists (through the writer category).

Test

Q.20 Medium Series & Analogies

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?

A 5

B 6

C 4

D 3

Correct Answer: B. 6

EXPLANATION

In circular arrangement, if left distance is 2, right distance = Total - left distance = 8 - 2 = 6

Test

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Reasoning Ability Series & Analogies

Reasoning Ability
Series & Analogies