SOLUTION: For Mike, it takes 6 hours to clean the basement. However, Sara takes 12 hours to complete the same job. If they work together, how long would they take?
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Question 874853: For Mike, it takes 6 hours to clean the basement. However, Sara takes 12 hours to complete the same job. If they work together, how long would they take?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
|Multiplying thru by 12x so as all denominators = 1
2x + x = 12
3x = 12
x = 4hr
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