Question

A car goes form point A to point B with the uniform speed of 20 m/sec and moves back to the point . A with the uniform velo of 30m/sec find the average speed of the car​

Answer 1

Answer:

Let distance from A to B be x

Time for travel from A to B= x/20

Time for travel from B to A= x/30

Hence,speed for total distance 2x is:

30

x

+

20

x

2x

=

5x

2x×60

=24 km\hr

Explanation:

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