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CBSE Class 9 Answered

Sir,please answer this question........
Asked by sahithi_16 | 20 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.

Regards,

Team,

TopperLearning.

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