A train travels the first 15 km at a uniform speed of 30 km per hour the next 75 km at a uniform speed of 50 kilometre per hour an

Question

A train travels the first 15 km at a uniform speed of 30 km per hour the next 75 km at a uniform speed of 50 kilometre per hour and class 10 km at a uniform speed of 20 kilometre per hour calculate the average speed of the train

Parker · Answer

Answer:   Distance=15+75+10=100m  Time=30+50+20=100m/s  average speed=distance/time  s=100/100=1m/s

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Delilah

what is precipitation reaction ???

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