Question 1066862

A motorbat can travel 9 miles/hr up a river and back downstream at 15 miles/hr. Find the rate of motorbat in still water and the rate of the river current.
<pre>{{{highlight_green(matrix(2,6, Speed, in, still, "water:", 12, mph, Speed, of, river, "current:", 3, mph))}}}
It's as simple as that...nothing COMPLEX and/or CONFUSING!