Question

A car travels equal distances in the same direction with speed 60Kmph, 20Kmph and 10Kmph respectively. Find the average speed of the​

Answer 1

Answer:

18 kmph

Explanation:

So with 60 kmph speed time taken will be S/60 h. With 20 kmph speed time taken will be = S/20 h. And with 10 kmph speed time taken will be = S/10 h. Hence, average speed = 3 S / (S/6) = 18 kmph