Mathematics, 14.08.2020 01:01 kelseybell5360

Kelli swam upstream for some distance in one hour. She then swam downstream the same river for the same distance in only 6 minutes. If the river flows at 5 km/hr, how fast can Kelli swim in still water?

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Kelli swam upstream for some distance in one hour. She then swam downstream the same river for the s...