SOLUTION: Cindy bikes from A to B at 20km/h. She returns by car at 80km/h. The bike trip is 3 hours longer than the car trip. How far is it from A to B?

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Question 1168039: Cindy bikes from A to B at 20km/h. She returns by car at 80km/h. The bike trip is 3 hours longer than the car trip. How far is it from A to B?
Answer by ikleyn(52799) About Me  (Show Source):
You can put this solution on YOUR website!
.

Write the "time" equation


    d%2F20 - d%2F80 = 3  hours,


where "d" is one way unknown distance.


It is your basic equation.


To solve it, multiply both sides by 80.  You will get


    4d - d = 240

    4d     = 240

     d     = 240/3 = 80 miles.    ANSWER

Solved.