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16 September, 11:29

Two trains leaves stations 320miles apart at the same time and travel toward eachother. One train travels at 110 miles per hour while the other travels at 90miles per hour. How long will it take for the two trains to meet.

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  1. 16 September, 15:05
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    x/110 = (320-x) / 90

    Cross multiply

    90x = 35200-110x

    200x=35200

    X = 35200/200 = 176 (distance traveled by train going 110 mph

    176/110 = 1.6 hours = 1 hour and 36 minutes

    Check: 110*1.6 = 176, 90*1.6 = 144

    176+144 = 320

    it will take 1.6 hours (1 hour 36 minutes) for the trains to meet
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