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Two automobiles are 150 kilometers apart and traveling toward each other. One automobile
is moving at 60 km/h and the other is moving at 40 km/h mph. In how many hours will they
Their relative speed is the sum of 60 and 40 or 100km/hr. They will travel the 150km in 1.5 hrs. When two object approach each other, the closing speed is just the sum of the speeds, therefore, the closing speed is your case is 100kph. So they will meet in 1.5 hours.
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