Find the missing term: 2, 9, 28, 65, ? MCQ with Answer and Explanation

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Find the missing term: 2, 9, 28, 65, ?

A. 127

B. 126

C. 125

D. 124

Answer: Option B

Solution (By JKSSB Mock Tests)

The terms follow n³+1: 1³+1=2, 2³+1=9, 3³+1=28, 4³+1=65, so next is 5³+1=126.

This question belongs to: Reasoning Mental Reasoning

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Practice More Mental Reasoning Questions

Question #1

In a row, Anil is 7th from left and 12th from right. How many people are in the row?

A. 20

B. 18

C. 17

D. 19

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Correct Answer: Option B

Explanation:
Total = left position + right position - 1 = 7+12-1=18.

This question belongs to: Reasoning Mental Reasoning

Question #2

In a row of 40 students, Ravi is 10th from the right. What is his position from the left?

A. 32

B. 30

C. 29

D. 31

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Correct Answer: Option D

Explanation:
Position from left = Total - Position from right + 1 = 40 - 10 + 1 = 31.

This question belongs to: Reasoning Mental Reasoning

Question #3

Find the missing term: 1, 3, 6, 10, 15, ?

A. 20

B. 21

C. 18

D. 19

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Correct Answer: Option B

Explanation:
Triangular numbers: n(n+1)/2. 1, 3, 6, 10, 15 correspond to n=1 to 5, so next is 6×7/2=21.

This question belongs to: Reasoning Mental Reasoning

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