A certain number of people are sitting in a row, facing north. P sits to the immediate left of Q. P sits second to the right of L. Z sits at one of the extreme ends of the row. Only one person sits to the right of S. K sits to the immediate right of D. L sits second to the right of D. Only two people sit between D and Z. Only one person sits between Q and S. If no other person is sitting in the row, what is the total number of persons seated?

Question

Question

This question was previously asked in

RRB Group D 1 Sept 2022 Shift 1 Official Paper

Answer 1

Given:

A certain number of people are sitting in a row, facing north.

Solution:

(1) Z sits at one of the extreme ends of the row.

(2) Only one person sits to the right of S.

F1 Savita Railways 23.03.2023 D25

(3) Only one person sits between Q and S.

F1 Savita Railways 23.03.2023 D26

(4) Only two people sit between D and Z. This is possible only in Case 1.

F1 Savita Railways 23.03.2023 D27

(5) P sits to the immediate left of Q.

(6) P sits second to the right of L.

F1 Savita Railways 23.03.2023 D28

(7) K sits to the immediate right of D.

(8) L sits second to the right of D.

F1 Savita Railways 23.03.2023 D29

So here, 12 is the total number of persons seated.

Hence, '12' is the correct answer.

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