Seven students, Q, R, S, T, W, X and Y, are sitting in a straight line facing north. Only one person sits between T and Q. Only two people sit between S and T. Only X sits to the right of Q. Y sits at some place to the right of W but at some place to the left of R. How many people sit to the right of R?

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  1. Four
  2. One
  3. Three
  4. Two

Answer (Detailed Solution Below)

Option 4 : Two
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Detailed Solution

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Given: Seven students, Q, R, S, T, W, X and Y, are sitting in a straight line facing north. 

1) Only X sits to the right of Q.

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2) Only one person sits between T and Q. 

3) Only two people sit between S and T.

qImage680c81507b69f8c38e93e7db

4) Y sits at some place to the right of W but at some place to the left of R.

qImage680c81507b69f8c38e93e7dc

Thus, according to the final arrangement two people sit to the right of R.

Hence, "Option 4" is the correct answer.

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