Question

a boy run at a speed of 8 metre per second how long does he take to cover a distance of one km

Answer 1

T= 8*60

480 seconds

Probably

Answer 2

1km=1000m

If 1sec.=8m

Then,

1000m÷8m=125sec.

Then the boy will take 125 second or 2 minutes 5 seconds to cover one km.