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12 November, 06:28

Two locomotives approach each other on parallel tracks. Each has a speed of 87 km/hr with respect to the ground. If they are initially 27 km apart, how long (in minutes) will it be before they reach each other?

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  1. 12 November, 10:21
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    9.3

    Step-by-step explanation:

    if both travel at same speed they will take equal distance and time to reach the middle and collide.

    hence, 27/2 = 13.5km

    speed=distance/time

    time = distance/speed

    time = 13.5/87 = 0.15517mm hr

    0.15517*60 = 9.31minutes
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