Seven people, N, O, P, Q, R, S and T, are sitting in a straight line facing north. T is sitting at one of the ends of the line. Only two people are sitting to the left of R. P is sitting to the immediate right of R and immediate left of S. Q is sitting to the immediate left of O. Q does not sit at an extreme end of the line. How many people are sitting between O and N?

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RRB NTPC Graduate Level CBT-I Official Paper (Held On: 05 Jun, 2025 Shift 1)
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  1. Zero
  2. One
  3.  Two
  4.  Four

Answer (Detailed Solution Below)

Option 4 :  Four
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Detailed Solution

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Given:

Seven people, N, O, P, Q, R, S and T, are sitting in a straight line facing north.

Only two people are sitting to the left of R.

P is sitting to the immediate right of R and immediate left of S.

Q is sitting to the immediate left of O.

Q does not sit at an extreme end of the line. 

T is sitting at one of the ends of the line.

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Thus, four people are sitting between O and N.

Hence, the correct answer is "Option 4".

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