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College Algebra 2

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The speed of train A is 16 mph slower than train B. Train A travels 190 mph in the same time it takes train B to travel 270 miles. Find the speed of each train.

  • College Algebra 2 -

    speed of slower train = x mph
    speed of faster train = x+16 mph

    time for slow train to go 190 miles = 190/x
    time for fast train to go 270 miles = 270/(x+16)

    but the times are the same ....
    190/x = 270/(x+16)
    cross-multiply and solve for x, easy from here.

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