Got this question wrong...would appreciate someone explaining what the speed of 'still water' could mean...
3. Find the speed of a man in still water if he goes upstream at 6 km/h when the rate of stream is 2 km/h.
A. 2 km/h
B. 8 km/h
C. 6 km/h
D. 14 km/h
E. 4 km/h
If you ingnore physics and biology, then it's C. If you don't, it also can be B and D. imo, I am not too sure how to answer it. You won't see it on gmat. What's OA?
p.s. technicaly you can say that the answer is none of the choices since the problem never actually says that he is in the stream when he walks upstream. He might as well walk alongside the stream.