A boat can travel with a speed of 13 km/hr in still water. If the speed of the

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Question: A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.

Options are:

A.     2 hours
B.     3 hours
C.     4 hours
D.     5 hours

Correct answer is:

C.     4 hours