a train covers a distance of 80 km at a speed of 40 km/ h for the first 60 km and the remaining distance at a speed of 20 km /h .find the average speed of the train on the journey
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Answer:
Total distance travel = 80km/h
Total time taken = 2hr
average speed =
Total distance travel/ total time taken
so,
80/2=40km/h
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