Question

a car takes 20 min to cover the distance of 15 km calculate the speed in km per hr

Answer 1

t= 20 min

   =20/60  hr

D= 15 km

speed = D/t

            = 50/(20/60)

            = 150 km \hr

Answer 2

Speed=distance/time

Distance=15km convert into meter

1km=1000m then

15km=1000×15=15000m

Time=20min

Speed =15000/20=750meter/min