Problema Solution
A motorboat travels 120mi in 2 hours going upstream. It travels 184mi going downstream in the same amount of time. What is the rate of the boat in still water and what is the rate of the current?
Answer provided by our tutors
the rate of the boat in still water: x
the rate of the current: y
So the equation is
x-y = 120/2
x+y = 184/2
So
x = 76
y = 16
So
the rate of the boat in still water: 76 mph
the rate of the current: 16 mph