Question

A car covers a distance of 60 km in 1st hour, 90 km in 2nd
hour, 150 km in 3rd and 120 km in 4th hour. Find the average
speed of the car.​

Answer 1

Total distance travelled= 60+90+150+120

= 420km

Average Speed= Distance/time

=420/4

=105 km/h

Answer 2

a car cover a distance in 1 hour=60 km

2nd=90 km

3nd=150

and,

4 th = 120

Total distance covers =( 60+90+150+120) /4

(4 is total average speed) = 420 km /4

=105 km

Hence, the average speed of a car is 105 km.✔