Find the odd one out: 3, 5, 7, 12, 17, 19 MCQ with Answer and Explanation

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Find the odd one out: 3, 5, 7, 12, 17, 19

A. 7

B. 12

C. 17

D. 19

Answer: Option B

Solution (By JKSSB Mock Tests)

All others are prime numbers while 12 is not.

This question belongs to: Reasoning Mental Reasoning

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Question #1

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If RAM is coded as IZN using reverse alphabet, how is SHYAM coded?

A. HSBZN

B. HSBAN

C. HSBZM

D. HSBZO

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Correct Answer: Option A

Explanation:
Reverse alphabet: S opposite H, H opposite S, Y opposite B, A opposite Z, M opposite N.

This question belongs to: Reasoning Mental Reasoning

Question #2

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Find the missing term: 2, 4, 8, 16, 32, ?

A. 72

B. 48

C. 64

D. 56

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Correct Answer: Option C

Explanation:
Each term is double the previous term: 32×2=64.

This question belongs to: Reasoning Mental Reasoning

Question #3

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Find the missing term: 12, 24, 36, 48, ?

A. 62

B. 60

C. 56

D. 58

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Correct Answer: Option B

Explanation:
Arithmetic progression with common difference 12: 48+12=60.

This question belongs to: Reasoning Mental Reasoning

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