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A man swims downstream 30 km and upstream 18 km taking 3 hours each time, what is the speed of the man in still water?
Question 1:
A man swims downstream 30 km and upstream 18 km taking 3 hours each time, what is the speed of the man in still water?
A.
2 kmph
B.
8 kmph
Feedback
30 --- 3 DS = 10
? ---- 1
18 ---- 3 US = 6
? ---- 1 M = ?
M = (10 + 6)/2 = 8
C.
16 kmph
D.
4 kmph
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