Two cars leave towns 600 kilometers apart at the same time and travel toard each other. One car's rate is 18 kilometers per hour more than the other's. If they meet in 3 hours, what is the rate of the slowest carw?

Mathematics · High School · Sun Jan 24 2021

Answered on

The time taken by both the cars is same = 3 hours
let speed of one be x kmph
other's speed is (x+18) kmph
3x+3(x+18) = 600

3x+3x+54=600
6x+54=600
6x= 546
x= 546/6
x= 91 km/h


x+18 = 91+18 = 109 km/h ------------- second car

 

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