- #1

- 35

- 0

## Homework Statement

A boat takes 2.0 hr to travel 31 km down a river, then 6.0 hr to return. How fast is the river flowing?

## Homework Equations

r=d/t

## The Attempt at a Solution

first started out by finding the rate the boat traveled in each trip.

31/2=15.5 km/hr

31/6=5.2 km/hr

Now this is where im not sure if im solving this correctly. I then find the difference between the two rates and the time taken to travel both ways.

10.3 (difference of 15.5-5.2)/4(difference of 6-2)=2.6 km/hr

Is this the correct way of solving this problem? Thanks!