SOLUTION: Nine pumps can empty a tank in 12 hours how long will it take 8 pumps to empty it? Thank you, Marcell

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Nine pumps can empty a tank in 12 hours how long will it take 8 pumps to empty it? Thank you, Marcell      Log On


   

Question 964600: Nine pumps can empty a tank in 12 hours how long will it take 8 pumps to empty it?
Thank you,
Marcell
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Nine pumps can empty a tank in 12 hours how long will it take 8 pumps to empty it?
----------
The job takes 9*12 pump-hours = 108 pump-hr
108 pump-hr/8 pumps = 13.5 hours
-----------
9*12 = 8*t