In an hour a boat goes 11 km along the stream and 5 km against the stream. The speed of the stream (in km/h) is:

In an hour a boat goes 11 km along the stream and 5 km against the

1.	In an hour a boat goes 11 km along the stream and 5 km against the stream. The speed of the stream (in km/h) is:
A.	5
B.	6
C.	8
D.	9
Answer» D. 9

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In an hour a boat goes 11 km along the stream and 5 km against the stream. The speed of the stream (in km/h) is:

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