Question: How do I solve this A boat's crew rowed 15 kilometers downstream, with the current, in 1 hours. The return trip upstream, against the current,

How do I solve this

A boat's crew rowed 15 kilometers downstream, with the current, in 1 hours. The return trip upstream, against the current, covered the same distance, and it took 5 hours. Find the crew's rowing rate in still water. rowing rate = kilometers per hour

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