a bus is moving at a constant rate of 40 km/h for two hours and then at a constant rate of 50km/h for two more hours what is its average speed
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Answered by
1
Answer:
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Answered by
0
Answer:
Average Speed = 45km/h
Explanation:
Case1_
distance travelled = speed × time
=40×2
=80km.
Case2_
distance travelled=speed×time=50×2=100km.
NOW,
Total distance travelled = 80km+100km=180km.
Total Time taken=2hours+2hours=4hours.
Therefore, average speed =
(Total distance travelled)÷(Total time taken)
=180÷4
=45km/h (Answer)
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