Find the missing term: 2, 5, 14, 41, ? MCQ with Answer and Explanation

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Find the missing term: 2, 5, 14, 41, ?

A. 122

B. 120

C. 126

D. 124

Answer: Option A

Solution (By JKSSB Mock Tests)

Each term is multiplied by 3 and 1 is subtracted: 2×3-1=5, 5×3-1=14, 14×3-1=41, so 41×3-1=122.

This question belongs to: Reasoning Mental Reasoning

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Question #1

Find the missing term: 1, 4, 9, 16, 25, ?

A. 36

B. 30

C. 35

D. 49

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Correct Answer: Option A

Explanation:
These are consecutive perfect squares: 1²=1, 2²=4, 3²=9, 4²=16, 5²=25, so next is 6²=36.

This question belongs to: Reasoning Mental Reasoning

Question #2

Find the missing number in the series: 2, 7, 24, 77, ?, 783

A. 246

B. 254

C. 238

D. 250

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Correct Answer: Option C

Explanation:
Pattern: 2×3+1=7, 7×3+3=24, 24×3+5=77, 77×3+7=238, 238×3+9=783. The added numbers are consecutive odd numbers.

This question belongs to: Reasoning Mental Reasoning

Question #3

Statements: All pens are books. Some books are erasers. Conclusions: I. Some pens are erasers. II. Some books are pens. Which conclusion(s) follow(s)?

A. Both I and II follow

B. Only II follows

C. Only I follows

D. Neither I nor II follows

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Correct Answer: Option B

Explanation:
From 'All pens are books' we can conclude 'Some books are pens'. But no definite relation follows between pens and erasers.

This question belongs to: Reasoning Mental Reasoning

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