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AMO 2027 Grades 8-9 SET 6 - Self-study Question 3

AMO · AMO 2027 Grades 8-9 SET 6 - Self-study

Question 3

Let $X=A+B+C+D$. If $A$, $B$, $C$, and $D$ are each randomly assigned a number from $\{2,3\}$, what is the probability that $X=10$?