Question

The side of a square field is 45m . A man runs around the field five times. Calculate the time taken by the man to cover the distance, if he runs at a speed of 8km/hr​

Answer 1

Answer:

25 sec

Step-by-step explanation:

side=45m

perimeter=4xs

so 4x45=180

he takes 4 rounds along a square so

4x180=720m

distance=720m

speed=8km/h

lkm/h=18/5m/sec

8x18/5=144/5m/sec

time=distance/speed

720x5/144=25sec