Sir,please answer this question........

Asked by sahithi_16 | 20th Oct, 2009, 06:43: AM

Expert Answer:

Average speed = total distance/total time.

Let the total travel time be T.

Total distance = 40xT/2 + 60xT/2= 50T

Hence average speed = 50T/T = 50 km/hr.




Answered by  | 20th Oct, 2009, 11:27: AM

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