SOLUTION: Company X can install chairs in a theater in 10 hours. Company Y can install them in 15 hours. How long would it take the two companies, working together to install the chairs.
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Question 40356: Company X can install chairs in a theater in 10 hours. Company Y can install them in 15 hours. How long would it take the two companies, working together to install the chairs.
______hours.
Thanks
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A tank can be filled in 18 hours by Pipe A or 24 hours by Pipe B. How long would it take both pipes to fill the tank?
_____hours
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
(10*15)/(10+15) or 150/25=6 hours to install the chairs
(18*24)/(18+24) or 432/42 or 10.2857 hours mto fill the tank
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