Statements: All pens are books. Some books are erasers. Conclusions: I. Some pens are erasers. II. Some books are pens. Which conclusion(s) follow(s)? MCQ with Answer and Explanation

Question

Statements: All pens are books. Some books are erasers. Conclusions: I. Some pens are erasers. II. Some books are pens. Which conclusion(s) follow(s)?

A. Neither I nor II follows

B. Both I and II follow

C. Only I follows

D. Only II follows

Answer: Option D

Solution (By JKSSB Mock Tests)

From 'All pens are books' we can conclude 'Some books are pens'. But no definite relation follows between pens and erasers.

This question belongs to: Reasoning Mental Reasoning

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Question #1

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In a row, Anil is 7th from left and 12th from right. How many people are in the row?

A. 19

B. 17

C. 20

D. 18

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Correct Answer: Option D

Explanation:
Total = left position + right position - 1 = 7+12-1=18.

This question belongs to: Reasoning Mental Reasoning

Question #2

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Find the missing term: 0, 3, 8, 15, 24, ?

A. 33

B. 34

C. 35

D. 36

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Correct Answer: Option C

Explanation:
The series follows n²-1: 1²-1=0, 2²-1=3, 3²-1=8, 4²-1=15, 5²-1=24, so next is 6²-1=35.

This question belongs to: Reasoning Mental Reasoning

Question #3

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Find the missing term: 2, 4, 8, 14, 22, ?

A. 32

B. 30

C. 34

D. 28

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Correct Answer: Option A

Explanation:
Differences are +2, +4, +6, +8, so next difference is +10: 22+10=32.

This question belongs to: Reasoning Mental Reasoning

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