SK BELLARE
SK BELLARE
8 years ago

A man walking at 3 km/hr. crosses a square field diagonally in 2 minutes. What is the area of the field.

A. 2500 meter square

B. 6000 meter square

C. 3000 meter square

D. 5000 meter square

Answer: Option D


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Comments ( 1 )

  1. Kumar Chandan
    Kumar Chandan :
    8 years ago

    Speed = 3 kmph = (3 * 5)/18 = 0.83 m/sec
    Time = 2 minutes = 120 sec
    Distance covered in 120 seconds = 120 * 0.83 = 100 m.
    Length of the diagonal = 100
    Sq rt 2 * side = 100
    Side = 70.92 m
    Area = Side * side = 70.92 * 70.92 = 5000 meter square (approx).

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