How far did the messenger travel by land

Reference no: EM13198966

To deliever a pakcage, a messenger must travel at a speed of 60 mi/h on land and then use a motorboat whose speed is 20 mi/h in still water. The messenger goes by land to a dock and then travels on a river against a current of 4 mi/h. He reaches the destination in 4.5 hours and then returns to the starting point in 3.5 hours. How far did the messenger travel by land and how far by water?

Reference no: EM13198966

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