pepepeteskitchen
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- Nov 21, 2005
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help me I am so confused!!!!!!
An oil refinery has a series of empty tanks, all of the same size. Pump A, working by itself, can fill one of these tanks in eighteen hours. If pumps A and B work together, they can fill an empty tank in eight hours. If pump A is down for servicing, how long would it take pump B, working by itself, to fill an empty tank?
An oil refinery has a series of empty tanks, all of the same size. Pump A, working by itself, can fill one of these tanks in eighteen hours. If pumps A and B work together, they can fill an empty tank in eight hours. If pump A is down for servicing, how long would it take pump B, working by itself, to fill an empty tank?