Mathematics, 18.10.2021 07:10 Aaraar
Working alone, Amy can clean an attic in 17 hours. One day her friend Sumalee helped her and it only took 7.03 hours. How long would it take Sumalee to do it alone?
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Working alone, Amy can clean an attic in 17 hours. One day her friend Sumalee helped her and it only...
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