Find the next number in the series: 2, 6, 12, 20, 30, ? MCQ with Answer and Explanation

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Find the next number in the series: 2, 6, 12, 20, 30, ?

A. 44

B. 46

C. 42

D. 40

Answer: Option C

Solution (By JKSSB Mock Tests)

Differences are +4, +6, +8, +10; next difference is +12. 30+12=42.

This question belongs to: Reasoning Logical Reasoning

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Practice More Logical Reasoning Questions

Question #1

If 'DONKEY' is coded as 'EPOLFZ', then 'HEN' is coded as ?

A. IFO

B. IEO

C. IGO

D. IFP

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Correct Answer: Option A

Explanation:
Each letter is shifted one place forward: H→I, E→F, N→O = IFO.

This question belongs to: Reasoning Logical Reasoning

Question #2

If a person facing north turns 135° clockwise, which direction is he facing now?

A. North-East

B. North-West

C. South-East

D. South-West

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Correct Answer: Option C

Explanation:
North + 90° = East; East + 45° = South-East.

This question belongs to: Reasoning Logical Reasoning

Question #3

Statements: All cats are dogs. All dogs are animals. Conclusions: I. All cats are animals. II. Some animals are cats.

A. Both I and II follow

B. Only I follows

C. Only II follows

D. Neither follows

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Correct Answer: Option A

Explanation:
All cats are dogs and all dogs are animals, so all cats are animals. Since cats exist, some animals are cats.

This question belongs to: Reasoning Logical Reasoning

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