SOLUTION: Alyse and Jeremy are washing their father's car. Alyse can wash the car by herself in 20 minutes. Jeremy can wash the car by himself in 30 minutes. How long does it take them to w

Question 425407: Alyse and Jeremy are washing their father's car. Alyse can wash the car by herself in 20 minutes. Jeremy can wash the car by himself in 30 minutes. How long does it take them to was the car if they work together.
Answer by Gogonati(855) (Show Source): You can put this solution on YOUR website!
Solution:Alyse in 1 minute wash 1/20 of the car, while Jeremy wash 1/30 of the car
Together for 1 minute they wash: 1/20+1/30=5/60=1/12 of the car.
Since they for a minute wash together 1/12 of the car, all the car they wash for 12 minutes.
Answer:If they work together wash the car for 12 minutes.
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