Total distance is 120 km . Going by 60kmph and coming back by
40kmph what is the average speed?
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Answer Posted / neel
Ans=24
avg veocity=Total Distance travelled/Total Time Taken
T1(Time taken to go)= 120/60=2
T2(Time Taken to return)=120/40=3
Total Distance=120+120=240
Total Time=2+3=5
So, Avg speed=total distn/time=240/5=48kmph
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