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- 14:30, 2 February 2019 (diff | hist) . . (+22) . . 2015 AMC 10A Problems/Problem 16 (→Note for solution 3:)
- 14:29, 2 February 2019 (diff | hist) . . (-3) . . 2015 AMC 10A Problems/Problem 16 (→Note for solution 3:)
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