Question

A motorcyclist drives from A to B with a uniform speed of 30kmh-1and returns with a speed of 20 kmh-1.Find its average speed.

Answer 1

Answer:

Correct option is

A

24kmh

−1

Let the length of the line segment AB be x m

The time taken is given as t=distance covered/speed

Total time = t

1

+t

2

=

30

x

+

20

x

=

60

5x

h

Average speed = Total distance/Total time =

5x/60

2x

=24 km/h

Explanation:

I HOPE IT'S HELPFUL FOR YOUR QUESTION

Answer 2

Answer:

24 km/hr

Explanation:

hope it helps...