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OpenStudy (anonymous):
If it takes 10 minutes to cut a board into 2 pieces, how long does it take to cut it into 3 pieces?
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OpenStudy (poopsiedoodle):
This is easy. You're adding another piece on. So, it's 2 + 1. Since 1 is half of 2, you add half of the time onto 10 minutes. So, 2+1 is like 10+5 in this case. So, 15 minutes.
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