Find the next number: 6, 11, 21, 40, 76, ? MCQ with Answer and Explanation

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Find the next number: 6, 11, 21, 40, 76, ?

A. 150

B. 152

C. 146

D. 148

Answer: Option C

Solution (By JKSSB Mock Tests)

6×2−1=11, 11×2−1=21, 21×2−2=40, 40×2−4=76, 76×2−6=146.

This question belongs to: Reasoning Logical Reasoning

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Question #1

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Statements: All books are papers. Some papers are journals. All journals are articles. Conclusions: I. Some articles are papers. II. Some journals are books.

A. Only I follows

B. Neither follows

C. Only II follows

D. Both follow

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Correct Answer: Option A

Explanation:
Some papers journals + all journals articles → some papers are articles → some articles are papers. No definite books and journals.

This question belongs to: Reasoning Logical Reasoning

Question #2

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If the word 'PHILOSOPHY' is arranged in alphabetical order, which letter will be the middle letter?

A. H

B. O

C. L

D. I

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Correct Answer: Option C

Explanation:
PHILOSOPHY sorted: H H I L O O P P S Y. 10 letters, middle between L and O. Commonly L.

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Question #3

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Statements: Some cars are buses. No bus is a truck. Conclusions: I. Some cars are not trucks. II. Some buses are cars.

A. Both I and II follow

B. Only II follows

C. Neither follows

D. Only I follows

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Correct Answer: Option A

Explanation:
The cars that are buses cannot be trucks, so I follows. Conversion of 'Some cars are buses' gives II.

This question belongs to: Reasoning Logical Reasoning

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