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Traviling upstream on the Mississippi River, a barge travels 56 mi in 7 h. Downstream, it travels the same distance in 4 h. Find the rate of the barge in still water and the rate of the current

 Jan 22, 2020
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Traviling upstream on the Mississippi River, a barge travels 56 mi in 7 h. Downstream, it travels the same distance in 4 h. Find the rate of the barge in still water and the rate of the current

 

56 /7 = 8 mph - its speed upstream

56 / 4 = 14 mph - its speed downstream

 

[8 + 14] / 2 = 11 mph - its speed in still water.

[14 - 8] / 2  = 3 mph - the rate of the current.

 Jan 22, 2020

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