Six friends P, Q, R, S, T and U sit in a row facing north. (i) P sits at the extreme left end. (ii) Exactly three people sit between P and R. (iii) S sits immediately to the right of R. (iv) Q sits second to the left of R. (v) T is not adjacent to P. How many persons sit between Q and S?

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Accepted Answer

Two. Order left to right is P, U, Q, T, R, S. Between Q and S sit T and R, i.e. two persons.

Six friends P, Q, R, S, T and U sit in a row facing north. (i) P sits at the extreme left end. (ii) Exactly three people sit between P and R. (iii) S sits immediately to the right of R. (iv) Q sits second to the left of R. (v) T is not adjacent to P. How many persons sit between Q and S?

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