Home Subjects Reasoning Ability Series & Analogies

Reasoning Ability
Series & Analogies

Critical thinking and logical reasoning questions

23 Q 8 Topics Take Mock Test
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Difficulty: All Easy Medium Hard 11–20 of 23
Topics in Reasoning Ability
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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