AMC 8 2013 Problem 21
AMC8 2013 年第 21 题
排列与组合★★★☆☆
Samantha lives 2 blocks west and 1 block south of the southwest corner of City Park. Her school is 2 blocks east and 2 blocks north of the northeast corner of City Park. On school days she bikes on streets to the southwest corner of City Park, then takes a diagonal path through the park to the northeast corner, and then bikes on streets to school. If her route is as short as possible, how many different routes can she take?
住在城市公园的西南角向西 2 个街区和向南 1 个街区的位置，而她的学校在城市公园的东北角向东两个街区和向北两个街区的位置。上学时，她首先沿着街道骑自行车到城市公园的西南角，然后沿着公园的一条对角线穿过公园到东北角，然后再沿着街道骑自行车到学校。如果她的路线尽可能短，她可以走多少条不同的路线？
- A.3
- B.6
- C.9
- D.12
- E.18
正确答案 · Correct Answer
E
解析 · Solution
解析整理中
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