SOLUTION: A company contracts to paint 3 houses. Mr.Brown can paint a house in 6 days while Mr.Black would take 8 days and Mr.Blue 12 days. After 8 days Mr.Brown goes on vacation and Mr. Bla

Question 262229: A company contracts to paint 3 houses. Mr.Brown can paint a house in 6 days while Mr.Black would take 8 days and Mr.Blue 12 days. After 8 days Mr.Brown goes on vacation and Mr. Black begins to work for a period of 6 days. How many days will it take Mr.Blue to complete the contract?
A. 7 B. 8 C. 11 D. 12
Answer by drk(1908) (Show Source): You can put this solution on YOUR website!
we have a working together problem. Here is an equation to start us out:

step 1 - multiply by common denominator of 24 to get

adding we get

subtract 50 to get

divide by 2 to get

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