Find the missing term: 4, 6, 10, 18, 34, ? MCQ with Answer and Explanation

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Find the missing term: 4, 6, 10, 18, 34, ?

A. 58

B. 62

C. 64

D. 66

Answer: Option D

Solution (By JKSSB Mock Tests)

Differences are +2, +4, +8, +16, each doubling; next difference is +32, so 34+32=66.

This question belongs to: Reasoning Mental Reasoning

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Question #1

Find the missing term: 5, 10, 30, 120, ?

A. 600

B. 500

C. 480

D. 540

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Correct Answer: Option A

Explanation:
Multipliers are 2, 3, 4, 5: 5×2=10, 10×3=30, 30×4=120, so 120×5=600.

This question belongs to: Reasoning Mental Reasoning

Question #2

A, B, C, D, E, F, G and H are sitting around a circular table facing the centre. A is second to the right of E who is the neighbour of F and G. D is not neighbour of A. B is neighbour of H. What is the position of C?

A. Immediate left of D

B. Second to the left of B

C. Cannot be determined

D. Third to the right of F

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Correct Answer: Option C

Explanation:
Multiple possible arrangements; position of C is not uniquely fixed.

This question belongs to: Reasoning Mental Reasoning

Question #3

Complete the series: 5, 6, 9, 15, 25, ?

A. 40

B. 50

C. 41

D. 45

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Correct Answer: Option C

Explanation:
Pattern: +1, +3, +6, +10, +15 (triangular numbers). 25+16? Differences of differences +2,+3,+4,+5 so next difference +15? 1,3,6,10,15. Yes 25+15=40. Option A.

This question belongs to: Reasoning Mental Reasoning

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