Running at an average speed of 40 km /hr, a bus completes a journey in 4 1/2 hours. How much time will the return take if the speed is increased to 45 km /hr?
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Answered by
175
A bus takes 4.5 hours to complete a complete a journey at a speed of 40km/hr
So, in this case, We will find the distance first because the distance is constant.
distance=speed*time
distance=40*4.5
distance=180km
Now, we find the time to cover the distance at the speed of 45km/hr
time=distance/speed
time=180/45
time=4hrs
Therefore, The answer is 4hrs
So, in this case, We will find the distance first because the distance is constant.
distance=speed*time
distance=40*4.5
distance=180km
Now, we find the time to cover the distance at the speed of 45km/hr
time=distance/speed
time=180/45
time=4hrs
Therefore, The answer is 4hrs
siddharthk7704:
Thanks for selecting my answer as brainliest. :)
Answered by
48
It would take him 4hrs. Coz in the first case if u calculate I'll get the distance as 180km. N in the second case take the distance as 180km nd the speed as 45km/h and calculate the time. I'll get 4 hrs .
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