AMC 8 2023 Problem 21
AMC8 2023 年第 21 题
排列与组合★★★★☆
Alina writes the numbers on separate cards, one number per card. She wishes to divide the cards into 3 groups of 3 cards so that the sum of the numbers in each group will be the same. In how many ways can this be done?
将数写在不同的卡片上，每张卡片上有一个数.她希望将卡片分成3组，每组3张卡片，使得每组中的各数之和相同. 问有多少种这样的分组方法?
- A.0
- B.1
- C.2
- D.3
- E.4
正确答案 · Correct Answer
C
解析 · Solution
解析整理中
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