ABC26GN3804 · Boats and Streams

Subject: General Aptitude · Chapter: Boats and Streams · Exam: 2009 · Marks: · Difficulty:

In one hour, a boat goes 11 km along the stream and 5 km against the stream. The speed of the boat in still water (in km/hr) is
(a)3
(b)5
(c)8
(d)9
Answer
Answer (as printed): C
Explanation
Speed of the boat in still water $=\frac{1}{2}(11+5) \mathrm{km} / \mathrm{hr}=8 \mathrm{km} / \mathrm{hr}$.

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