Find the missing term: 3, 9, 27, 81, ? MCQ with Answer and Explanation

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Find the missing term: 3, 9, 27, 81, ?

A. 216

B. 243

C. 324

D. 162

Answer: Option B

Solution (By JKSSB Mock Tests)

Each term is multiplied by 3: 3×3=9, 9×3=27, 27×3=81, so 81×3=243.

This question belongs to: Reasoning Mental Reasoning

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Practice More Mental Reasoning Questions

Question #1

Find the missing term in the series: 2, 3, 8, 27, 112, ?

A. 565

B. 550

C. 555

D. 560

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Correct Answer: Option A

Explanation:
Pattern: 2×1+1=3, 3×2+2=8, 8×3+3=27, 27×4+4=112, 112×5+5=565.

This question belongs to: Reasoning Mental Reasoning

Question #2

In a row of 30 students, Ravi is 7th from the left. What is his position from the right?

A. 24

B. 25

C. 23

D. 22

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Correct Answer: Option A

Explanation:
Position from right = Total - Position from left + 1 = 30 - 7 + 1 = 24.

This question belongs to: Reasoning Mental Reasoning

Question #3

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

A. 12

B. 7

C. 17

D. 19

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Correct Answer: Option A

Explanation:
All others are prime numbers while 12 is not.

This question belongs to: Reasoning Mental Reasoning

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