Find the missing term: 2, 6, 12, 20, 30, 42, ? MCQ with Answer and Explanation

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Find the missing term: 2, 6, 12, 20, 30, 42, ?

A. 50

B. 64

C. 54

D. 56

Answer: Option D

Solution (By JKSSB Mock Tests)

Pattern n(n+1): 1×2=2, 2×3=6, 3×4=12, 4×5=20, 5×6=30, 6×7=42, so next is 7×8=56.

This question belongs to: Reasoning Mental Reasoning

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Question #1

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Statements: All students are ambitious. Some ambitious are hardworking. Conclusions: I. Some hardworking are students. II. All hardworking are ambitious.

A. Only II follows

B. Either I or II follows

C. Neither I nor II follows

D. Only I follows

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Correct Answer: Option C

Explanation:
No definite relation between hardworking and students. All hardworking are ambitious does not follow. Neither follows.

This question belongs to: Reasoning Mental Reasoning

Question #2

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Find the missing term: 6, 9, 15, 21, 33, ?

A. 51

B. 39

C. 42

D. 45

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Correct Answer: Option B

Explanation:
These are products of 3 and consecutive primes: 2×3=6, 3×3=9, 5×3=15, 7×3=21, 11×3=33, so next is 13×3=39.

This question belongs to: Reasoning Mental Reasoning

Question #3

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Find the missing term: 2, 6, 18, 54, 162, ?

A. 324

B. 486

C. 498

D. 504

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Correct Answer: Option B

Explanation:
Each term is multiplied by 3: 162×3=486.

This question belongs to: Reasoning Mental Reasoning

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