SOLUTION: traveling with the current a certain boat went 20 km/h. Against the same current it only went 2km/h. Find the speed of the boat in still water and the speed of the current.

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Question 927169: traveling with the current a certain boat went 20 km/h. Against the same current it only went 2km/h. Find the speed of the boat in still water and the speed of the current.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
r + c = 20kmph
r - c = 2kmph
2r = 22kmph
r = 11kmph and c = 9kmph 20-11