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15 October, 15:10

A train travels 50 kilometers in 4 hours, and then 77 kilometers in 3 hours. What is its average speed?

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  1. 15 October, 15:12
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    The formula for finding speed is distance divided by time:

    Speed = Total Distance / Total Time

    D1 = 50

    TI = 4

    D2 = 77

    T2 = 3

    Average speed = D1 + D2 / TI + T2

    Average Speed = 50 + 77 / 4 + 3 = 127 / 7 = 18.14.

    Therefore, the average speed of the train is 18.14 m/s.
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