28.
After covering a distance of 30 km with a uniform speed there is some defect in a railway engine and therefore its speed is reduced to 4/5th of this original speed. Consequently the train reaches its destination late by 45 minutes. Had it happened after covering 18 km more, the train would have reaches 9 minutes earlier. Find the speed of the train and the distance of journey.
Solution not provided.
Ans. 30 km/hr, 120 km/hr
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