Together, 15 type a machines and 7 type b machines can complete a certain job in 4 hours. together, 8 type b machines and 15 type c machines can complete the same job in 11 hours. how many hours would it take one type a machine, one type b machine, and one type c machine working together to complete the job (assuming constant rates for each machine)?
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Together, 15 type a machines and 7 type b machines can complete a certain job in 4 hours. together,...
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Computers and Technology, 18.08.2020 21:01
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