SOLUTION: An express train travels 80 mph from Wheaton to ward. a local train traveling 48 mph takes 2 hours longer for the same trip. how far are the cities?

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Question 1148076: An express train travels 80 mph from Wheaton to ward. a local train traveling 48 mph takes 2 hours longer for the same trip. how far are the cities?
Answer by ikleyn(52847) About Me  (Show Source):
You can put this solution on YOUR website!
.

Let "d" be the unknown distance.


Then you have this "time" equation


    d%2F48 - d%2F80 = 2  hours,


which is an exact translation of English to Math.


To solve it, multiply both sides by 480.  You will get


    10d - 6d = 960

     4d      = 960

      d      = 960%2F4 = 240 miles.    ANSWER


CHECK.  240%2F48 = 5 hours;  240%2F80 = 3 hours.   5 hours - 3 hours = 2 hours.   ! Correct !

Solved.