In a row, R is 7th from left and S is 10th from right. If they interchange, R becomes 12th from the left. How many persons are in the row? MCQ with Answer and Explanation

Question

In a row, R is 7th from left and S is 10th from right. If they interchange, R becomes 12th from the left. How many persons are in the row?

A. 20

B. 21

C. 22

D. 19

Answer: Option B

Solution (By JKSSB Mock Tests)

S's original left position is R's new left position, 12. Total = 12 + 10 - 1 = 21.

This question belongs to: Reasoning Mental Reasoning

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Mental Reasoning Questions

Question #1

Share Report

Find the missing term: 3, 10, 29, 66, ?

A. 127

B. 131

C. 129

D. 125

View Answer & Solution Discuss

Get Complete Subject PDF for Reasoning

Correct Answer: Option A

Explanation:
The terms follow n³ + 2: 1³+2=3, 2³+2=10, 3³+2=29, 4³+2=66, so next is 5³+2=127.

This question belongs to: Reasoning Mental Reasoning

Question #2

Share Report

If 'CODE' is written as 'DPEF', then 'JAVA' is written as?

A. KCWB

B. KBVC

C. KBWB

D. KAVB

View Answer & Solution Discuss

Get Complete Subject PDF for Reasoning

Correct Answer: Option C

Explanation:
Each letter is shifted forward by 1: C→D, O→P, D→E, E→F; J→K, A→B, V→W, A→B gives KBWB.

This question belongs to: Reasoning Mental Reasoning

Question #3

Share Report

A is B's sister. C is B's mother. D is C's father. F is A's son. How is F related to D?

A. Son

B. Grandfather

C. Grandson

D. Great grandson

View Answer & Solution Discuss

Get Complete Subject PDF for Reasoning

Correct Answer: Option D

Explanation:
D is father of C, C is mother of A and B, F is son of A. Thus F is great grandson of D.

This question belongs to: Reasoning Mental Reasoning

Explore All Mental Reasoning MCQs