AMC 8 2017 Problem 15

AMC8 2017 年第 15

基本计数原理★★★☆☆
In the arrangement of letters and numerals below, by how many different paths can one spell AMC8? Beginning at the A in the middle, a path allows only moves from one letter to an adjacent (above, below, left, or right, but not diagonal) letter. One example of such a path is traced in the picture.
在下图所示的字母和数字的排布中,拼写出 AMC8 有多少种方法?要求从中间的 A 开始,移动的路径只允许从一个字母移到和这个字母相邻的字母(上,下,左,右,但不允许是对角线)。一种可能的路径标示在图中。
AMC 8 2017 Problem 15 figure
  1. A.8
  2. B.9
  3. C.12
  4. D.24
  5. E.36

正确答案 · Correct Answer

D

解析 · Solution

解析整理中

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