Question
Seven persons P, Q, R, S, T, U and V sit in a straight
row facing north direction. R sits third to the left of P. Q sits adjacent to P. S sits second to the right of Q. T sits at the extreme right end. U sits to the left of V, who is not adjacent to S. How many persons sit to the left of V?Solution
R sits third to the left of P. Q sits adjacent to P. S sits second to the right of Q. R ____ Q P S …….. (I) R ____ ___ P Q ____ S …….. (II) T sits at the extreme right end. U sits to the left of V, who is not adjacent to S. U R V Q P S T …….. (I) R ____ ___ P Q ____ S …….. (II) Final arrangement as shown below: U R V Q P S T
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