Question

the area of a square field is 50625 m square. A man cycles along its boundary at 18 km per hour. In how much time will be returned at the starting point?

Answer 1

Hey.

Here is the answer.

As area of square field is 50625m^2

so side = √area =√50625 m = 225 m

so perimeter = 4×side = 4×225 = 900 m


As speed is 18kmph = 18×5/18m/s = 5m/s

so, time taken = 900/5 s

= 180 s

or, 3 minutes.

Thanks.