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?

Algebra ->  Rate-of-work-word-problems -> 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?       Log On


   

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) About Me  (Show Source):
You can put this solution on YOUR website!
1%2F6+%2B+1%2F12+=+1%2Fx |Multiplying thru by 12x so as all denominators = 1
2x + x = 12
3x = 12
x = 4hr