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8 December, 14:03

A train travels 86 kilometers in 1 hours, and then 98 kilometers in 1 hours. What is its average speed?

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  1. 8 December, 17:38
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    Answer: average speed = 92 km/h

    Explanation:

    1) dа ta:

    distance 1 = 86 km

    time 1 = 1 hour

    distance 2 = 98 km

    time 2 = 1 hour

    average speed = ?

    2) Formula:

    average speed = distance / time

    3) distance = distance 1 + distance 2 = 86 km + 98 km = 184 km

    4) time = time 1 + time 2 = 1 h + 1 h = 2h

    5) average speed = 184 km / 2h = 92 km/h
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