Question

A car travels 20km in first hour, 40km in second hour and 30km in third hour. calculate the average spee
d of the train?​

Answer 1

Answer:

20+40+30/ 3

then average speed is 30 km/hr

Answer 2

Distance in first hour =20km

Distance in second hour =40km

Distance in third hour =30km

•°• Average distance =

$\frac{20 + 20 + 40}{2} \\ \frac{90}{2} \\ = 45km/hr$