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Mathematics, 16.03.2022 07:10 thebestaround15

Working alone, a painter can paint a small apartment in 10 hours. Her helper can paint the same apartment in 15 hours. How long would it take the painter and her helper to complete the job if they work together? (6 hr)

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Working alone, a painter can paint a small apartment in 10 hours. Her helper can paint the same apar...
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