18 : 54 :: 24 : ? MCQ with Answer and Explanation

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18 : 54 :: 24 : ?

A. 72

B. 48

C. 84

D. 60

Answer: Option A

Solution (By JKSSB Mock Tests)

The relation is n × 3. 18 × 3 = 54; 24 × 3 = 72.

This question belongs to: Reasoning Mental Reasoning

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Question #1

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In a row of 40 students, Ravi is 10th from the right. What is his position from the left?

A. 29

B. 30

C. 32

D. 31

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Correct Answer: Option D

Explanation:
Position from left = Total - Position from right + 1 = 40 - 10 + 1 = 31.

This question belongs to: Reasoning Mental Reasoning

Question #2

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Statements: All roses are flowers. Some flowers fade quickly. Conclusions: I. Some roses fade quickly. II. All flowers are roses. III. Some flowers are roses. Which conclusion follows?

A. None

B. Only I

C. Only III

D. Only II

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Correct Answer: Option C

Explanation:
Since all roses are flowers, some flowers are roses follows. We cannot infer that roses are among the flowers that fade quickly.

This question belongs to: Reasoning Mental Reasoning

Question #3

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11 : 1210 :: 12 : ?

A. 1728

B. 1584

C. 1440

D. 1716

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Correct Answer: Option B

Explanation:
The relation is n^2(n-1). 11^2 × 10 = 1210; 12^2 × 11 = 144 × 11 = 1584.

This question belongs to: Reasoning Mental Reasoning

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