Question: On average, Amy takes 2 more hours to build a shelf than Kathryn. If working together Amy and Kathryn can build 25 shelves in
On average, Amy takes 2 more hours to build a shelf than Kathryn. If working together Amy and Kathryn can build 25 shelves in a combined 60 hours, how long does it take Kathryn to build a shelf? Do not include the units in your answer.
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