SOLUTION: Two truck drivers leave a cafe at the same​ time, travelling in opposite directions. One truck goes 1 mph faster than the other one. After 4 ​hr, they are 404 miles apart. How

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Question 1136648: Two truck drivers leave a cafe at the same​ time, travelling in opposite directions. One truck goes 1 mph faster than the other one. After 4 ​hr, they are 404 miles apart. How fast is each truck​ going?
Answer by ikleyn(52887) About Me  (Show Source):
You can put this solution on YOUR website!
.
The sum of two distances is 404 miles:


    r*4 + (r+1)*4 = 404,


where " r " is the rate of slower car.


    r + (r+1) = 101

    2r + 1 = 101

    2r = 101 - 1 = 100    ====>  r = 50.


Answer.  50 mph and 51 mph.

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