Nine friends K, L, M, N, O, P, Q, R and S are sitting in a row and are facing South. L is sitting to the immediate right of M. M at the second place to the right of N. K is sitting at one end of the row. Only Q is seated between P and O. O is sitting at the third place to the left of K. S is sitting to the immediate left of N. There are only five people sitting to the right of M. Who is sitting to the immediate left of M?

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RRB NTPC CBT 2 (Level-5) Official Paper (Held On: 15 June 2022 Shift 3)
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  1. L
  2. P
  3. Q
  4. R

Answer (Detailed Solution Below)

Option 4 : R
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RRB NTPC CBT-I Official Paper (Held On: 4 Jan 2021 Shift 1)
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Detailed Solution

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Friends: K, L, M, N, O, P, Q, R and S (South facing)

Important Points

  •  Because the friends are facing South, when we say that L is to the left of M, it will be placed at the right in the diagram.

1) K is sitting at one end of the row. 

Case 1:

F3 Madhuri SSC 04.08.2022 D9

Case 2:

F3 Madhuri SSC 04.08.2022 D10

2) O is sitting at the third place to the left of K. (So case 1 is eliminated)

F3 Madhuri SSC 04.08.2022 D11

3) There are only five people sitting to the right of M.

F3 Madhuri SSC 04.08.2022 D12

4) L is sitting to the immediate right of M.

F3 Madhuri SSC 04.08.2022 D13

5) M at the second place to the right of N.

F3 Madhuri SSC 04.08.2022 D14

6) Only Q is seated between P and O. 

F3 Madhuri SSC 04.08.2022 D15

7) S is sitting to the immediate left of N.

F3 Madhuri SSC 04.08.2022 D16

Hence, R is sitting to the immediate left of M.

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