SOLUTION: A boat traveled 112miles downstream took 7hrs. The trip back took 14hrs. What is the speed of the boat in still water? What is the speed of the current?

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: A boat traveled 112miles downstream took 7hrs. The trip back took 14hrs. What is the speed of the boat in still water? What is the speed of the current?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 601273: A boat traveled 112miles downstream took 7hrs. The trip back took 14hrs. What is the speed of the boat in still water? What is the speed of the current?
Answer by flame8855(424) About Me  (Show Source):
You can put this solution on YOUR website!
let x be the speed of boat in still water
let c be the speed of current
downstream : speed = x + c
x+c= 112/7 = 16
upstream : speed = x-c
x-c= 112/14 = 8
solve
x= 12 mph speed of boat in still water
c = 4 mph speed of current