Question

Please answer fast
The area of a square field is 60025 m². A man cycles along its boundary at 18 km/hour. In how much time will he return at the starting point?Please explain it clearly .
Tthe answer is 3 minutes 16 seconds.

Answer 1

Area of square field = (side)^2 = 60025

Thus side is 245 m..

Total distance = perimeter = 980 m...

Also, speed = 18 km/h = 5 m/s

We know, distance = (speed)(time)

So, time is 980/5
= 196 sec

Convert this to minutes and u get ur answer as

3 min. 16s.

Answer 2

He will return to starting point in 196 seconds.