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- 12:16, 9 August 2014 (diff | hist) . . (0) . . 1991 AIME Problems/Problem 12 (→Solution 3: fixed typo)
- 11:43, 9 August 2014 (diff | hist) . . (0) . . m 1991 AIME Problems/Problem 12 (→Solution 2: fixed typo)
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