Find the missing number: 4, 9, 16, 25, 36, ? MCQ with Answer and Explanation

Find the missing number: 4, 9, 16, 25, 36, ?
A. 47
B. 49
C. 48
D. 50
Answer: Option B
Solution (By JKSSB Mock Tests)
Squares of consecutive numbers: 2²,3²,4²,5²,6²,7²=49.

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Practice More Mental Reasoning Questions

Question #1
Find the odd one out: 5, 10, 15, 20, 26
A. 15
B. 26
C. 5
D. 20

Correct Answer: Option B


Explanation:
All others are multiples of 5; 26 is not divisible by 5.

This question belongs to: Reasoning Mental Reasoning
Question #2
A, B, C, D, E, F, G and H are sitting around a circular table facing the centre. A is second to the right of E who is the neighbour of F and G. D is not neighbour of A. B is neighbour of H. What is the position of C?
A. Third to the right of F
B. Immediate left of D
C. Second to the left of B
D. Cannot be determined

Correct Answer: Option D


Explanation:
Multiple possible arrangements; position of C is not uniquely fixed.

This question belongs to: Reasoning Mental Reasoning
Question #3
If the positions of the first and the sixth letters in the word 'BENEFICIAL' are interchanged, similarly the positions of the second and the seventh letters are interchanged and so on, which letter will be the third from the right after rearrangement?
A. C
B. F
C. I
D. E

Correct Answer: Option A


Explanation:
Word: B E N E F I C I A L (positions 1 to 10). Interchange 1-6, 2-7, 3-8, 4-9, 5-10. New: I I C I A B E N E F. Third from right is C (positions from right: F, E, C).

This question belongs to: Reasoning Mental Reasoning