Question

A car covers a distance of 5km in20mins.Find the velocity of the car in km/min,km/hr

Answer 1

Car covers 5km in 20 minutes.
5km=5000m
We know that,
Average velocity=distance/time

AVR.Velocity=5000/20

AVR.Velocity=250 metres/minute
250metres=250/1000km=0.25km
20minute=20/60hr=1/3hr

Hence,
velocity of car in km/min=0.25km/minute
and,
velocity of car in km/hr=5/(1/3)=15km/hr

Answer 2

distance covered by car (d)= 5 km
time taken(t) = 20 min.= 1/3 hrs

speed = distance / time
= 5/20
= 0.25 km/min.
speed = distance/time
= 5/1/3
= 5*3
= 15 km/hr