Question

wats the answer
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

cuz i just did a question like this already

Answer 2

but it think its b

Answer 3

you are correct. upstream overall speed decreases as the stream is against the boat

Answer 4

thx

Answer 5

you're welcome ;)