最新提问
我的动态
登录后查看动态
题目内容双击单词支持查询和收藏哦～
From Room Number 100 -799, inclusive, the units digit of a double room is 5 or 6, the tens digit of a double-room is 6 or 7, when a room is randomly selected, what's the probability that it is a double room?
Give your answer as a fraction.
1 /25显示答案
· 相关考点
6.4.1 古典概率
6.4.1 古典概率
以上解析由 考满分老师提供。
