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a tank can be filled in 18 hours by pipe A or in 24 hours by pipe B. How long would it take both pipes to fill the tank?

a tank can be filled in 18 hours by pipe A or in 24 hours by pipe B. How long would it take both pipes to fill the tank?

Interested in a PLAGIARISM-FREE paper based on these particular instructions?...with 100% confidentiality?

Order Now