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A blind person after walking each 10 ste...

A blind person after walking each 10 steps in one direction, each of length 80 cm, turns randomly the left or to right by `90^@`. After walking a total of 40 steps the maximum possible displacement the person from his starting position could be (A) 320 m (B) 32 m (C) `16/sqrt2` m (D) `16sqrt2` m

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A blind person after walking each 10 steps in one direction,each of length 80cm, turns randomly the left or to right by 90^(@). After walking a total of 40 steps the maximum possible displacement the person from his starting position could be (A) 320(B) 32m (C) (16)/(sqrt(2))m(D)16sqrt(2)m

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