- UID
- 1051262
- 在线时间
- 小时
- 注册时间
- 2014-9-26
- 最后登录
- 1970-1-1
- 主题
- 帖子
- 性别
- 保密
|
List T consists of 30 positive decimals, none of which is an integer, and the sum of the 30 decimals is S. The estimated sum of the 30 decimals, £, is defined as follows. Each decimal in T whose tenths digit is even is rounded up to the nearest integer, and each decimal in T whose tenths digit is odd is rounded down to the nearest integer; E is the sum of the resulting integers. If of the decimals in T have a tenths digit that is even, which of the following is a possible value of E - S ? |
|