# A man swims downstream 30 km and upstream 18 km taking 3 hours each time, what is the speed of the ...

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?

## Answer/Solution

8

### Steps/Work

30 --- 3 DS = 10

? ---- 1

18 ---- 3 US = 6

? ---- 1 M = ?

M = (10 + 6)/2 = 8

Answer: B

? ---- 1

18 ---- 3 US = 6

? ---- 1 M = ?

M = (10 + 6)/2 = 8

Answer: B