Question

A train covers a distance of 40 km at the speed of 30 km/h the next 33 km distance covers with a speed of 44 km/h and last 80 km with the speed of 64 km/h find the average speed of the train?

A 59.75 km/hr
B 41 km/hr
C 52 km/hr
D 45.9 km/hr
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