A train travels a distance of 480km at a uniform speed. If the speed had been 8km/hr less, then it would have taken 3 hours more to cover the same distance. Formulate the quadratic equation in terms of the speed of the train.
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Solution
Let the speed of the train be x km/hr. Then Time taken to travel a distance of 480km=480xhr Time taken by the train to travel a distance of 480km with the speed (x−8)km/hr=480x−8hr
It is given that if the speed had been 8km/hr less, then the train would have taken 3 hours more to cover the same distance