Question

If a car travels first 40km at speed of 20km/h and next 80km at a speed of 40km/h. What is the average speed of cat during journey?

Answer 1

its average speed will be 30 km/hr.

Answer 2

The formula for finding avg. speed in equal time distributions is
(S1 + S2) divided by 2
Ie: (20 + 40)/2 = 30kmph