Problema Solution

alicia can row 4 miles downstream in the same time it takes her to row 2 miles upstream. she rows downstream 4 miles/hour faster than she rows upstream. Find Alicia's rowing rate each way

Answer provided by our tutors

Let x=Alicia's upstream rowing rate

x+4=Alicia's downstream rowing rate

 

Travel time= distance/rowing rate

4/(x+4)=2/x

4x=2x+8

2x=8

x=8/2=4  mph upstream Rate

x+4=6    mph downstream Rate