Question 626507
300 = r*t


300/r = t


t = 300/r


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450 = (r+25)*t


450 = (r+25)*(300/r)


450r = 300(r+25)


450r = 300r+7500


450r-300r = 7500


150r = 7500


r = 7500/150


r = 50


So the slower car is traveling <font color="red">50 km/h</font> while the faster car is traveling 50+25 = <font color="red">75 km/h</font>


Note: this is all done within 300/50 = 6 hours, but this fact is irrelevant.


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