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Jessica can paint a room in 12 hours. If Mary helps, it takes them 10 hours. Without help how long would it take for mary to finish this job?
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Jessica can paint a room in 12 hours. If Mary helps, it takes them 10 hours. Without help how long would it take for mary to finish this job?

User Carl Whalley
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1 Answer

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Well we know that mary can help remove 2 hours. that means it must take her 12+2=14 hours for mary to finish the job
User Temima
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