Question

a train travels at a speed of 50Km/h for 30min.,40km/h for the next 15 min. and then 60km/h for the next 60min.
calculate the average speed of train
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Answer 1

Answer:

984 m/s

Explanation:

take out distance x1 x2 and x3

then add , get total distance

av speed = total dist. / total time