SOLUTION: The Department ot Education is holding their annual Brigada Eskwela to prepare and clean up the classrooms.Kimberly can paint a chair in 45 minutes.Arthur can paint the same chairs

Question 1002869: The Department ot Education is holding their annual Brigada Eskwela to prepare and clean up the classrooms.Kimberly can paint a chair in 45 minutes.Arthur can paint the same chairs in 30 minutes. If they work together, how long will it take them to paint six chairs.
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Painting the chair 1 job
Kimberly 45 minutes
She does 1/45 job in 1 minute
Arthur 30 minutes
He does 1/30 of thejob in 1 minute
Together they will do 1/45 + 1/30 +
Together they will do 1/18 of the job in one minute
So they will take 18 minutes

m.ananth@hotmail.ca
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