Mathematics, 20.07.2019 13:20 princesskoi8561

It takes tom 4 hours to build a fence. if he hires jack to him, together they can do the job in just 3 hours. if jack built the same fence alone, how long would it take him?

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It takes tom 4 hours to build a fence. if he hires jack to him, together they can do the job in jus...

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