Question 1124070: To get from A to B, the train average 140 MPH, on the way back it averages 110 MPH. The total roundtrip took 6 hours, how long did it take to go from A to B?
Found 3 solutions by josgarithmetic, MathTherapy, greenestamps:
Answer by josgarithmetic(39616)   (Show Source):
Answer by MathTherapy(10551)  (Show Source):
You can put this solution on YOUR website!
To get from A to B, the train average 140 MPH, on the way back it averages 110 MPH. The total roundtrip took 6 hours, how long did it take to go from A to B?
The equation you need is a DISTANCE one: 
Solve this for T and you should get the time from A to B.
Yes, IT IS that easy!!
Answer by greenestamps(13198)  (Show Source):
You can put this solution on YOUR website!
Here is a completely different way to solve the problem than shown by the other tutor.
The ratio of speeds going and returning is 140:110 = 14:11.
Since the distances are the same, the ratio of times is 11:14.
So the amount of time going from A to B is 11/25 of the total of 6 hours:
6*(11/25) = 66/25 hours.
Try both methods and see what works best for you.
Better yet, think about other ways to solve the problem and see if you find a way that is even easier for you.
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