A boy walks to his school at a distance 6 km with a constant speed of 2.5 km /hr and walks back with a constant speed of 4 km/hr .What is the average speed of round trip in km/hr?
Answers
Answered by
247
Going from home to school-
Constant speed = 2.5km/h
Distance = 6km
Time taken = 6/2.5
= 2.4 hours
Going from school to home-
Constant speed = 4km/h
Distance = 6km
Time taken = 6/4
= 1.5 hours
Total time is taken in traveling = 3.9 hours
Total distance = 12km
Average speed of round-trip = 12/3.9
= 3.08 hours
Answered by
38
Explanation:
Hope it helps you please follow me
Attachments:
Similar questions