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A Boat Travels Upstream and After One Hour Has Gone

Question 55

Multiple Choice

A boat travels upstream and after one hour has gone 8 km.The boat next travels downstream and after one hour has gone 14 km.If the boat's speed relative to the water is constant,what is the speed of the current in the river?
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A) 2 km/h
B) 3 km/h
C) 4 km/h
D) 5 km/h
E) ​6 km/h

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