SOLUTION: It takes the owner/operator of a dog kennel 4 hours to clean all of the cages. It takes his assistant 2 hour(s) more than that to clean the same cages. How long will it take if the

Question 767849: It takes the owner/operator of a dog kennel 4 hours to clean all of the cages. It takes his assistant 2 hour(s) more than that to clean the same cages. How long will it take if they work together?
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
It takes the owner/operator of a dog kennel 4 hours to clean all of the cages. It takes his assistant 2 hour(s) more than that to clean the same cages. How long will it take if they work together?
***
1/4=work rate of owner
1/6=work rate of assistant
x=time it will take with both owner and assistant working together
1/x=work rate both working together
sum of individual work rates=work rate working together

5/12=1/x
x=12/5=2.4
time it will take with both owner and assistant working together=2.4 hrs
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