Find the missing term: 4, 9, 25, 49, ? MCQ with Answer and Explanation

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Find the missing term: 4, 9, 25, 49, ?

A. 100

B. 169

C. 81

D. 121

Answer: Option D

Solution (By JKSSB Mock Tests)

These are squares of consecutive prime numbers: 2²=4, 3²=9, 5²=25, 7²=49, so next is 11²=121.

This question belongs to: Reasoning Mental Reasoning

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Practice More Mental Reasoning Questions

Question #1

Find the missing term: 1, 2, 4, 7, 11, ?

A. 17

B. 14

C. 15

D. 16

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Correct Answer: Option D

Explanation:
Differences: +1, +2, +3, +4, so next difference is +5: 11+5=16.

This question belongs to: Reasoning Mental Reasoning

Question #2

In a queue, Sita is 8th from the front and 13th from the back. How many persons are in the queue?

A. 19

B. 21

C. 22

D. 20

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Correct Answer: Option D

Explanation:
Total persons = 8 + 13 - 1 = 20.

This question belongs to: Reasoning Mental Reasoning

Question #3

A man walks 4 km towards north, then turns right and walks 3 km. What is the shortest distance from the starting point?

A. 6 km

B. 8 km

C. 5 km

D. 7 km

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Correct Answer: Option C

Explanation:
The path forms a right-angled triangle with sides 4 km and 3 km. Shortest distance = √(4² + 3²) = √25 = 5 km.

This question belongs to: Reasoning Mental Reasoning

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