Find the missing term: 2, 3, 10, 39, ? MCQ with Answer and Explanation

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Find the missing term: 2, 3, 10, 39, ?

A. 160

B. 168

C. 172

D. 180

Answer: Option C

Solution (By JKSSB Mock Tests)

Pattern: ×1+1=3, ×2+4=10, ×3+9=39, so next is ×4+16=172.

This question belongs to: Reasoning Mental Reasoning

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Question #1

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A man facing north turns 180° clockwise, then turns 90° anti-clockwise. Which direction is he facing now?

A. West

B. North

C. East

D. South

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Correct Answer: Option C

Explanation:
From north, 180° clockwise takes him to south. Then 90° anti-clockwise from south takes him to east.

This question belongs to: Reasoning Mental Reasoning

Question #2

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If 'RAT' is coded as 'IZG', then 'COW' is coded as?

A. XLE

B. WLD

C. XMD

D. XLD

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Correct Answer: Option D

Explanation:
Reverse letter coding: R→I, A→Z, T→G; C→X, O→L, W→D, so COW = XLD.

This question belongs to: Reasoning Mental Reasoning

Question #3

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Find the missing term: 10, 18, 34, 66, ?

A. 128

B. 130

C. 126

D. 132

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Correct Answer: Option B

Explanation:
Each term is multiplied by 2 and 2 is subtracted: 10×2-2=18, 18×2-2=34, 34×2-2=66, so next is 66×2-2=130.

This question belongs to: Reasoning Mental Reasoning

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