THE 2013–2014 KENNESAW STATE UNIVERSITY HIGH SCHOOL ...

1. A Debbie gets twice as many marbles as Don, so the total number of marbles the two possess must be a multiple of 3. Then the difference between 163 (the total number of marbles) and the number of chipped marbles must be divisible by 3. Of the six given numbers, only 22 has this property (163 – 22 = 141 = 3⋅47). Therefore, there are 22 ................
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