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OpenStudy (brandy):
Calculators were purchased @$100 per dozen and sold @$30 for three calculators. What is the profit on 6 dozen?
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OpenStudy (anonymous):
100 x 6 = 600 30/3 = 10 per calculator 10 x 72 = 720 "72 is 6 dozen" 72 x 10= 720 720 - 600 = 120 profit
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