Revision history of "2021 JMC 10 Problems/Problem 5"

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  • (cur | prev) 15:08, 1 April 2021Skyscraper (talk | contribs). . (677 bytes) (+677). . (Created page with "==Problem== A mixture has <math>96</math> grams of aluminum and <math>4</math> grams of barium. Nir the chemist uses magic to remove some aluminum. Now, exactly <math>90\%</ma...")