Find the next number: 4, 5, 12, 39, 160, ? MCQ with Answer and Explanation

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Find the next number: 4, 5, 12, 39, 160, ?

A. 810

B. 805

C. 815

D. 820

Answer: Option B

Solution (By JKSSB Mock Tests)

Pattern: ×1+1, ×2+2, ×3+3, ×4+4, ×5+5: 4×1+1=5, 5×2+2=12, 12×3+3=39, 39×4+4=160, 160×5+5=805.

This question belongs to: Reasoning Mental Reasoning

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Question #1

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Statements: Some kings are queens. All queens are beautiful. Conclusions: I. All kings are beautiful. II. All queens are kings.

A. Only II follows

B. Either I or II follows

C. Only I follows

D. Neither I nor II follows

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Correct Answer: Option D

Explanation:
Some kings are queens and all queens are beautiful ⇒ Some kings are beautiful. Neither all kings are beautiful nor all queens are kings follows.

This question belongs to: Reasoning Mental Reasoning

Question #2

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CAT : DDY :: DOG : ?

A. EQM

B. ERL

C. FSM

D. EPH

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Correct Answer: Option B

Explanation:
C+1=D, A+3=D, T+5=Y. Similarly, D+1=E, O+3=R, G+5=L, so DOG becomes ERL.

This question belongs to: Reasoning Mental Reasoning

Question #3

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Find the missing term: 2, 4, 16, 256, ?

A. 32768

B. 4096

C. 16384

D. 65536

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Correct Answer: Option D

Explanation:
Each term is the square of the previous: 2²=4, 4²=16, 16²=256, so next is 256²=65536.

This question belongs to: Reasoning Mental Reasoning

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