Question

A car moving on a straight road covers one third
of the distance with 20 km/h and the last with 60
km/h. What is the average speed of the car?

Answer 1

Explanation:

Assuming the total distance to be 3x.

Time taken by the car to cover one-third of the distance = x/20

Time taken to cover two-thirds of the distance by the car = 2x/60

= x/30 Total time taken by the car

= x/20 + x/30 equals to 5x/60 which is x/12

Average speed obtained= (Total distance travelled)/(Total time taken)

= (3x)/(x/12) = 36 kilometre/hour

Plz mark as brainlist

Answer 2

Answer:

60/20=3 3per km is the average of car