A boat covers a certain distance downstream in 90 minutes. If the ratio of the speed of the boat in still water to the speed of the stream is 3 : 1 3:...

Question

A boat covers a certain distance downstream in 90 minutes. If the ratio of the speed of the boat in still water to the speed of the stream is 3:13:1, find the time taken by the boat to cover the same distance upstream.

Options

A.

2.5 hours

B.

3.5 hours

C.

2 hours

D.

1.5 hours

E.

3 hours

boat and streamtime and distanceratiospeed

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