After covering a distance of 30 km with a uniform speed there is somedefect in a train engine and therefore its speed gets reduced to 4/5of its original speed. Consequently, the train reaches its destinationlate by 45 minutes. If, the defect in engine would have occurred aftercovering 18 kilometres more distance, the train would have reached9 minutes earlier. The original speed of the train is:

After covering a distance of 30 km with a uniform speed there is somed

1.	After covering a distance of 30 km with a uniform speed there is somedefect in a train engine and therefore its speed gets reduced to 4/5of its original speed. Consequently, the train reaches its destinationlate by 45 minutes. If, the defect in engine would have occurred aftercovering 18 kilometres more distance, the train would have reached9 minutes earlier. The original speed of the train is:
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