Total distance is 120 km . Going by 60kmph and coming back by 40kmph what is the average speed?

3 Answers on this Question

1. avg velocity concept
   120/60=2
   120/40=3
   2+3=5
   240/5=48km

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2. 48 kmph

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3. Avg = 2(X*Y)/X+Y
   2*(60*40)/60+40
   2*(2400)/100
   2*24
   48.

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