Question

A boat makes a 120-mile trip downstream in 3 hours but makes the return trip in 4 hours. if b = the rate of the boat in still water and c = the rate of the current, which of the following represents the trip up stream

Answer 1

Explanation:

The boat makes 120 mile trip downstream in 3 hours, but makes the return trip in 4 hours. If b-the rate of the boat in still water and c= the rate of the current, the following equations represents the trip upstream; 4(b - c) = 120. The answer will be B.