Question

A bus travels from station A to station B with a uniform speed 40 km/h and comes back to station A with a uniform speed 80 km/h. Calculate the average speed.

37.33km/h

57.33km/h

53.33km/h

68.57 km/h

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Answer 1

Given:-

Speed of the car from A to B=40km/h

Speed of the car from B to A=80km/h

Let the,two speeds Be V1 and V2 respectively.

To find:-

Average speed of the car.

Solution:-

The distance travelled by the car in both cases is same.

Thus,when distance travelled is same,then average speed is--------

=>2V1V2/V1+V2

=>(2×40×80)/(40+80)

=>6400/120

=>53.33km/h

Hence,average speed of the car is 53.33km/h

Answer 2

Answer:

Hey mate your answer is given below