Question

I need help setting this problem up

It takes a boat 1.5 hours to go 24 miles downstream and 3 hours to return upstream to its starting point. What is the boat's rate in still water?

please help

Answer 1

downstream in the direction of moving water,
the rate of the boat relative to land is the water speed plus the boat speed,

going back upriver, the two are not working together, but against

Answer 2

@DanJS I get that, forgot to add that I to have to set it up into a system of equation and then solve it.