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The daughter needs 12 hours to clean up after the painters. The mother could do the same cleaning in 8 hours. How long will it take to clean up after the painters if the mother starts work only after the daughter has completed 2 hours?

Correct answer:

x =  6 h

Step-by-step explanation:

x/12+(x2)/8=1  5x=30  x=530=6  x=6=6 h



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