Mathematics, 22.11.2020 06:10 dianereyes7475

A printing press can produce 1 day's newspaper in 4 hours. A higher-speed machine can do 1 day's newspaper in 2 hours. How much time would it take both presses to do the one job?

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A printing press can produce 1 day's newspaper in 4 hours. A higher-speed machine can do 1 day's new...