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  • A gumball machine contains <math>9</math> red, <math>7</math> white, and <math>8</mat
    16 KB (2,292 words) - 12:36, 19 February 2020
  • A gumball machine contains <math>9</math> red, <math>7</math> white, and <math>8</mat ...rs, that is, <math>9</math> gumballs, then the <math>10^{\text{th}}</math> gumball must be the fourth one for one of the colors. Therefore, the person must bu
    684 bytes (108 words) - 00:10, 7 November 2018