Question 240512
D=RT OR R=D/T
R=48/4=12 MPH WITH THE CURRENT.
R=48/6=8 MPH AGAINST THE CURRENT
(12-8)/2=4/2=2 MPH IS THE RATE OF THE CURRENT.
PROOF:
12-2=10 MPH SPEED OF THE CANOE IN STILL WATER.
8+2=10 DITTO.