Find the missing term: 2, 12, 30, 56, ? MCQ with Answer and Explanation

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Find the missing term: 2, 12, 30, 56, ?

A. 80

B. 84

C. 88

D. 90

Answer: Option D

Solution (By JKSSB Mock Tests)

The terms follow n²+n for odd n? Check: 1²+1=2, 3²+3=12, 5²+5=30, 7²+7=56, so next is 9²+9=90.

This question belongs to: Reasoning Mental Reasoning

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Question #1

Find the missing term: 2, 4, 8, 16, 32, ?

A. 48

B. 56

C. 72

D. 64

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Correct Answer: Option D

Explanation:
Each term is double the previous term: 32×2=64.

This question belongs to: Reasoning Mental Reasoning

Question #2

A person starts from a point A and travels 3 km eastwards to B and then turns left and travels thrice that distance to reach C. He again turns left and travels five times the distance he covered between A and B and reaches his destination D. How far is he from the starting point?

A. 21 km

B. 18 km

C. 15 km

D. 12 km

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Correct Answer: Option C

Explanation:
A to B: 3 km East. B to C: 9 km North. C to D: 15 km West. From start: 15-3=12 km West and 9 km North. Distance = √(12²+9²)=15 km.

This question belongs to: Reasoning Mental Reasoning

Question #3

Find the next number in the series: 1, 4, 27, 16, 125, 36, ?

A. 216

B. 49

C. 343

D. 64

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Correct Answer: Option C

Explanation:
Alternate cubes and squares: 1³, 2², 3³, 4², 5³, 6², 7³=343.

This question belongs to: Reasoning Mental Reasoning

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