- 在線時間
- 205 小時
- 最後登錄
- 18-6-19
- 國民生產力
- 0
- 附加生產力
- 1789
- 貢獻生產力
- 0
- 註冊時間
- 14-10-19
- 閱讀權限
- 10
- 帖子
- 731
- 主題
- 50
- 精華
- 0
- 積分
- 2520
- UID
- 1687463
 
|
| In a school, students must study at least one language from german, french and spanish of these students: 7study all three of the languages, 10 study both german and french, 12 study both spanish and german, 9 study both french and spanish, 16 study spanish, 18 study german work out the total number of the students in the class who study, You may use the Venn diagram to help with your calculations. |
|
發表於 18-3-4 11:18
