Physics, asked by Bhumeet4201, 1 year ago

a car drives from place a to b at a uniform speed of 30 kms and returns to place a at a uniform speed of 20 km/hr. what is the average speed

Answers

Answered by duragpalsingh
6
Let the distance be 'x'
Then total distance = x + x = 2x
Time = x/20 + x/30
         = 5x/60

We know,

Average Speed  = Total Distance/Total time

∴ 2x/(2x/60)
⇒ 2x × 60/5x
⇒ 24 km/hr  ←Ans

Good Studies!
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