In a row, P is 10th from the left and Q is 6th from the right. After interchanging, P is 18th from the left. How many persons are in the row? MCQ with Answer and Explanation

Question

In a row, P is 10th from the left and Q is 6th from the right. After interchanging, P is 18th from the left. How many persons are in the row?

A. 25

B. 22

C. 23

D. 24

Answer: Option C

Solution (By JKSSB Mock Tests)

Q's original left position is P's new left position, 18. Total = 18 + 6 - 1 = 23.

This question belongs to: Reasoning Mental Reasoning

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Question #1

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Pointing to a woman, a man said, 'Her father is the son-in-law of my mother.' How is the woman related to the man?

A. Sister

B. Cousin

C. Daughter

D. Niece

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Correct Answer: Option D

Explanation:
The son-in-law of the man's mother is the husband of the man's sister. His daughter is the man's niece.

This question belongs to: Reasoning Mental Reasoning

Question #2

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If 15 August 2020 was Saturday, what day was 15 August 2021?

A. Friday

B. Saturday

C. Sunday

D. Monday

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Correct Answer: Option C

Explanation:
From 15 August 2020 to 15 August 2021 there are 365 days. 365 ÷ 7 leaves remainder 1, so Saturday + 1 = Sunday.

This question belongs to: Reasoning Mental Reasoning

Question #3

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Find the odd one out: 64, 81, 100, 125, 144

A. 125

B. 144

C. 64

D. 100

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Correct Answer: Option A

Explanation:
125 is a perfect cube, while all other options are perfect squares.

This question belongs to: Reasoning Mental Reasoning

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