Question

A motor car travelled 100km per hour and came back with a velocity of 25 km per hour. Find the average speed​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

48 km/hr

Step-by-step explanation:

average speed=distance traveled /time traveled

total time traveled=100/60+100/40=5/3+5/2=10/6+15/6=25/6

distance traveled=200

average speed=200/ (25/6)= 48

average speed for the whole journey=48 km/hr

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