MATH

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Two truck drivers leave a cafe at the same time, traveling in opposite direction. One truck goes 1 mph faster than the other one. After 4 hours, they are 396 miles apart. How fast is each truck going?

  • MATH -

    speed of slower = x mph
    speed of faster = x+1 mph

    4x + 4(x+1) = 396
    8x = 392
    x = 49

    etc

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