SOLUTION: the freight train took 10 hours to make the same trip the express train made in 6 hours. Find the speed of the express train if it was 20 mph faster than the freight train

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: the freight train took 10 hours to make the same trip the express train made in 6 hours. Find the speed of the express train if it was 20 mph faster than the freight train      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 878671: the freight train took 10 hours to make the same trip the express train made in 6 hours. Find the speed of the express train if it was 20 mph faster than the freight train
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
The trip distance is d.
Freight train's speed is r.

______________speed________time________distance
freight_______r_____________10_________d=r*10
express_______r+20___________6_________d=(r+20)*6

EQUAL DISTANCE TRIP!