The area of a square field is 60025 m2. A man cycles along its boundary at 18 km/h. In how much time will he return to the starting point?
Given that,
Area of the square field = 60025 m2
Length of each side of the square field = = 245 m
We know that,
Perimeter of the square = 4 × sides
= 4 × 245
= 980 m
= km
It is also given that, the man is cycling at a speed of 18 km/h
Therefore,
Time =
=
= hr
= sec
= 98 × 2 sec
= 196 sec
= 3 min 16 sec