Revision history of "1972 AHSME Problems/Problem 15"

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  • (cur | prev) 09:07, 29 January 2021Coolmath34 (talk | contribs). . (929 bytes) (+929). . (Created page with "== Problem == A contractor estimated that one of his two bricklayers would take <math>9</math> hours to build a certain wall and the other <math>10</math> hours. However,...")