Question

A train travels at 60 km/h for 0.52 h, 30 km/h for the next 0.24 h, and then 70 km/h for the next 0.71 h. What is the average speed of the train?
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Answer 1

Answer:

Total distance travelled

= (31.2 + 7.2 + 49.7) km = 88.1 km .

Total time taken = (0.52 + 0.24 + 0.71) hr = 1.47 hr .

Average speed = Total distance travelled / Total time taken

= (88.1/1.47) km /hr

Hence, average speed = 59.9 km/hr