Question

A car travels 20 km in one hour and another 40 km in 3 hours. what is the average speed of the car.

Answer 1

As per the definition of average speed, it is basically total distance travelled divided by total time taken

Averagespeed=Averagespeed=

Totaldistance/TotaltimeTotaldistance/Totaltime

Here total distance travelled is 20+40= 60Km by the car.

Total time taken is 1+3=4hrs.

Hence the average speed of the car is given by

S = 60/4 = 15Km/hr

Answer 2

average speed =total distance / total time
20+40/4=60/4=15
hope it will help you