QA – Placement Quizzes | Trains, Boats and Streams | Question 3
A boat runs at the speed of 13 km/h in still water. If the speed of the stream is 4 km/h, how much time will it take to go 68 km downstream?
(A) 5 h
(B) 4 h
(C) 6 h
(D) 3 h
Explanation: Speed of the boat downstream = 13 + 4 = 17 km/h.
Therefore, time taken to go 68 km downstream = (68/17) = 4 h.
Quiz of this Question
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