A person rows 30 km upstream and the same distance downstream. The total time taken by him for this whole journey is \(3\dfrac{1}{5}\) hours. If the speed of the stream is 5 km/h, then in how many hours does the person row a distance of 144 km upstream?

A person rows 30 km upstream and the same distance downstream. The tot

1.	A person rows 30 km upstream and the same distance downstream. The total time taken by him for this whole journey is \(3\dfrac{1}{5}\) hours. If the speed of the stream is 5 km/h, then in how many hours does the person row a distance of 144 km upstream?
A.	9.6
B.	8.4
C.	10
D.	9
Answer» B. 8.4

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A person rows 30 km upstream and the same distance downstream. The total time taken by him for this whole journey is \(3\dfrac{1}{5}\) hours. If the speed of the stream is 5 km/h, then in how many hours does the person row a distance of 144 km upstream?

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