Need help with this word problem. will be in the description below

Question

While canoeing on the Tickfaw River, Christina traveled 30 miles upstream (against the current) in 5 hours. It took her only 3 hours paddling back to the spot where she started. Find Christina"s canoeing rate in still water and the rate of the current.

Answer 1

s= rate of speed in still water

c= speed of the current

30 = 5(s-c) = 5s-5c

30 = 3(s+c)v=3s+3c

15s+15c = 150

15s -15c = 90

30s = 240

s = 8 mph

c = 2 mph