Math Problem Statement
Hỏi có bao nhiêu sâu độ dài 1200 gồm 3 chữ số A,B,C sao cho mỗi chữ số xuất hiện chẵn lần.
Solution
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Math Problem Analysis
Mathematical Concepts
Combinatorics
Permutation and Combination
Even Occurrences
Formulas
x + y + z = 600 (for even occurrences of A, B, C)
Combination formula: C(n, k) = n! / (k! * (n - k)!)
C(602, 2) = (602 * 601) / 2
Theorems
Stars and Bars Theorem (for distributing indistinguishable objects)
Suitable Grade Level
Grades 10-12
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