SOLUTION: A salmon can go 40 feet downstream on a river in 2 seconds. It takes 8 seconds for the this salmon to go back upstream the same 40 feet. Find the speed of the current.
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Question 931612: A salmon can go 40 feet downstream on a river in 2 seconds. It takes 8 seconds for the this salmon to go back upstream the same 40 feet. Find the speed of the current. Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website! r+ c = 20fps 40ft/2sec r- c = 5ftps 40ft/(8sec)
2r = 25
r = 12.5
c = 7.5fps
Re TY
(in the above had both ft and sec to deal with converting to mph)
as (as 1*3600 = 1 hr)
c = 7.5(3600)ft/hr) AND = mph
.......
8 miles on a river in 20 minutes
(as 20*3 = 60min)
Yes. 8*3= 24mph
Good Work.
