Urgent! Rate Time Distance problem

[sassafras]

A boat has a speed of 10 mph on still water. A trip of 24 miles upstream and then 24 miles downstream (back to the starting place) takes 12 minutes more than a trip of 48 miles in still water. What is the rate of the current?


(I already figured out that 5 hrs is the total time for both upstream and downstream but I don't know where to go from there)

 

[lev888]

Set up an equation: time upstream + time downstream = 5h

 

[sassafras]

I don't think that answers the question... I'm trying to find the rate of the current and also the two times would be different in case you were thinking it was 2.5

 

[Dr.Peterson]

Did you define a variable, such as x = rate of current?

Then what is the speed of the boat in each direction?