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题目内容双击单词支持查询和收藏哦～
The phone extensions of a certain company run consecutively from 3000 to 3799. The phone extensions that began with the digits 33 or 34 belong to Division 1 of the company. The phone extensions that end with the digit 0 or 1 belong to managers. What percent of the phone extensions of the company belong to managers in Division 1?
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· 相关考点
6.4.1 古典概率 6.3.1 基本计数原理与加法原理
6.4.1 古典概率
6.3.1 基本计数原理与加法原理
以上解析由 考满分老师提供。
