robinsoladyrp robinsoladyrp

22-01-2017
Mathematics

contestada

Working alone, it takes Julia 16 hours to clean an attic. Lea can clean the same attic in 15 hours. If they worked together how long would it take them?

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1217aaronredis1 1217aaronredis1

22-01-2017

How do you think we set this problem up?

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