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Please help! Math Problem.?

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Two cars leave town traveling in opposite directions. One travels at 80 km/h and the other at 96 km/h. In how many hours will they be 528 km apart?

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  1. Assume after X hrs they are 528 Kms apart. Then in X hrs each car  has  traveled

    80X+ 96 X     =  528 hence

    x is  3 hrs




  2. They move in opposite direction

    Therefore,

    relative speed = 80 + 96 = 176 km/h

    Relative distance = 528 km

    Time = relative distance/relative time

    = 528/176 = 3 hours

    Ans: 3 hours

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