Problema Solution
2. A boat’s crew rowed 12 miles downstream with the current, in 2 hours. The return trip upstream, against the current, covered the same distance, but took 3 hours. Find the crew’s rowing rate in still water and the rate of the current?
Answer provided by our tutors
D=RT
12=R*2
R=12/2
R=6 MPH WITH THE CURRENT.
12=R*3
R=12/3
4 MPH AGAINST THE CURRENT.
(6+4)/2=10/2=5 MPH IS THE SPEED OF THE BOAT IN STILL WATER.
6-5=1 MPH FOR THE CURRENT.
5-4=1