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Question 909157:  It takes 12 painters to paint 4 rooms in 6 days. How many painters is needed to paint 12 rooms in 3 hours? 
 Answer by josmiceli(19441)      (Show Source): 
You can  put this solution on YOUR website! 12 painters paint 4 rooms in 6 days 
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It will take 3 times as many painters to 
paint 3 times as many rooms in the same time 
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36 painters paint 12 rooms in 6 days 
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In 1/2 that time, it will take twice as many  
painters to paint the same number of rooms 
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72 painters paint 12 rooms in 3 days 
( you meant 3 days, not 3 hours, right? ) 
 
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