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In one hour, a boat goes 11 km/hr along the stream and 5 km/hr against the stream. The speed of the boat in still water (in km/hr) is:

3 km/hr
5 km/hr
8 km/hr
9 km/hr

Correct Answer: 8 km/hr

Explanation:

Speed in still water =	1	(11 + 5) kmph = 8 kmph.
	2

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