SOLUTION: Two pipes can be used to fill a swimming pool. When the first pipe is closed, the second pipe can fill the pool in 13 hours. When the second pipe is closed, the first pipe can fill

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Two pipes can be used to fill a swimming pool. When the first pipe is closed, the second pipe can fill the pool in 13 hours. When the second pipe is closed, the first pipe can fill      Log On


   



Question 992170: Two pipes can be used to fill a swimming pool. When the first pipe is closed, the second pipe can fill the pool in 13 hours. When the second pipe is closed, the first pipe can fill the pool in 8 hours. How long (in hours) will it take to fill the pool if both pipes are open? (Round your answer to one decimal)
Answer by ikleyn(52792) About Me  (Show Source):
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