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QA - Placement Quizzes | Trains, Boats and Streams | Question 1
A boatman takes 3 hours 45 minutes to travel 15 km downstream and takes 2 hours 30 minutes to travel 5 km upstream of a river. What is the speed of the stream of the river in km/h?
(A)
2 km/h
(B)
1 km/h
(C)
6 km/h
(D)
4 km/h
Answer
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