AMC 8 1999 Problem 11
AMC8 1999 年第 11 题
基本计数原理★★★☆☆
Each of the five numbers 1, 4, 7, 10, and 13 is placed in one of the five squares so that the sum of the three numbers in the horizontal row equals the sum of the three numbers in the vertical column. The largest possible value for the horizontal or vertical sum is
将五个数 1、4、7、10 和 13 分别放入五个方格中，使得横排三个数之和等于竖排三个数之和。水平或垂直和的最大可能值是
- A.20
- B.21
- C.22
- D.24
- E.30
正确答案 · Correct Answer
D
解析 · Solution
解析整理中
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