Two poles are placed at P and Q on either side of a road such that the line joining P and Q

Two poles are placed at P and Q on either side of a road such that the line joining P and Q is perpendicular to the length of road. A person moves a metre away from P parallel to the road and places another pole at R. Then the person moves further x metre in the same direction and turns and moves a distance y metre away from the road perpendicularly, where he finds himself, Q and R on the same line. The distance between P and Q (i.e. the width of the road) in metre is
(a) x
(b) x/2
(c) y
(d) 2 y

Anurag Mishra Professor Asked on 19th February 2016 in Maths.
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    Answer: (a) x 

    Anurag Mishra Professor Answered on 19th February 2016.
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