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Revision history of "1956 AHSME Problems/Problem 47"

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  • (cur | prev) 07:42, 6 November 2017‎ Prayersmith (talk | contribs)‎ . . (392 bytes) (+392)‎ . . (Created page with "In 1 day, <math>x</math> machines can do <math>\frac {1}{3}</math> of the job , and <math>x + 3</math> machines<math> \frac {1}{2}</math> of the job. So <math>3</math> machi...")
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