SOLUTION: A steamer going downstream traveled the distance between two ports in 3 hours and 40 minutes. Find the speed of the current if the speed of the boat in still water is 18mph?

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Question 1197472: A steamer going downstream traveled the distance between two ports in 3 hours and 40 minutes. Find the speed of the current if the speed of the boat in still water is 18mph?
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
%2818%2Bc%29%2A%283%262%2F3%29=D and D is this distance between the two ports.

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SOLVE THE EQUATION FOR c.
SPEED%2ATIME=Distance

Answer by ikleyn(52794) About Me  (Show Source):
You can put this solution on YOUR website!
.

The input information is not sufficient to find the speed of the current as a certain number.