an express train takes 1×1/2 hour less than a passenger train for covering a distance of 180 km. If speed of express train is 20 km/hr more than that of a passenger train,finf the speed of both the trains.
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Assume the two times of different trains.. Then Calculate with the given time Substracting the time for passenger - time for express train.
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Satan2002:
hope you understood.
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