Revision history of "2001 CEMC Gauss (Grade 8) Problems/Problem 17"

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  • (cur | prev) 20:58, 20 October 2025Anabel.disher (talk | contribs). . (1,036 bytes) (+1,036). . (Created page with "==Problem== Daniel’s age is one-ninth of his father’s age. One year from now, Daniel’s father’s age will be seven times Daniel’s age. The difference between their...")