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Mathematics, 15.04.2020 22:25 kquestion

Marco can build a computer twice as fast as Cliff. Working together, it takes them 5 hours. How long would it have taken Marco working alone?


Marco can build a computer twice as fast as Cliff. Working together, it takes them 5 hours. How long

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Marco can build a computer twice as fast as Cliff. Working together, it takes them 5 hours. How long...
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