Posted by **Melissa** on Friday, November 2, 2012 at 1:02am.

Jared can paddle his canoe 1 mile upstream in 1 hour, but it takes only a half hour to paddle back the same distance. Find the speed of water. (Hint: d=rt and the rate or canoe speed, depending on which way he is going.)

- Math -
**Steve**, Friday, November 2, 2012 at 1:33am
the distance is the same, so, with water speed = w,

(r-w)(1) = (r+w)(.5)

and (r-w)(1) = 1, so r = w+1

(r+w)(.5) = w+.5 = 1, so w = 1/2

so,r = 3/2

check:

upstream: 1 mile/1mph = 1 hour

1 mile/2mph = .5 hour

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