# A crew team rows a boat at a rate of 20 km/h in still water. Beginning at time = 0 minutes

**Question description**

A crew team rows a boat at a rate of 20 km/h in still water. Beginning at time = 0 minutes, the team rows for 30 minutes up a river (against the current). The speed of the current is 1.5 km/h. How long will it take the crew team to row down the river (with the current) to return to the starting point

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