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 equations represents the trip upstream?

3(b - c) = 120
4(b - c) = 120
4(b + c) = 120

Answer 1

in my personal opinion i think its 4(b-c)=120

Answer 2

thanks

Answer 3

Np