Mathematics, 19.08.2020 01:01 QueenNerdy889

Jessica and Mary were able to cut the shrubs in 6 hours together. It takes Mary 10 hours to complete the same job alone. Without help, how long would it take Jessica to complete the same job ?

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Jessica and Mary were able to cut the shrubs in 6 hours together. It takes Mary 10 hours to complete...

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