SOLUTION: the speed of train a is 6 mph slower than the speed of train b.Train A travels 200 miles in the same time it takes train b to travel 230 miles. What is the speed of each train?

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: the speed of train a is 6 mph slower than the speed of train b.Train A travels 200 miles in the same time it takes train b to travel 230 miles. What is the speed of each train?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 424302: the speed of train a is 6 mph slower than the speed of train b.Train A travels 200 miles in the same time it takes train b to travel 230 miles. What is the speed of each train?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
the speed of train a is 6 mph slower than the speed of train b.
Train A travels 200 miles in the same time it takes train b to travel 230 miles.
What is the speed of each train?
:
Let s = speed of the slower train (a)
then
(s+6) = speed of the faster train (b)
:
Write time equation; time = dist/speed
:
Fast train time = slow train time
230%2F%28%28s%2B6%29%29 = 200%2Fs
Cross multiply
230s = 200(s+6)
230s = 200s + 1200
230s - 200s = 1200
30s = 1200
s = 1200%2F30
s = 40 mph is the speed of a, the slower train
then
40 + 6 = 46 mph is the speed of b
:
:
You can confirm this by finding the travel time of each train, should be equal