[計量] 請教一題印度機經

看板GRE (GRE入學考試)作者 (kaku)時間17年前 (2008/07/21 23:43), 編輯推噓3(302)
留言5則, 4人參與, 最新討論串1/2 (看更多)
Given total number of students as 120 & Number of students learning Spanish = 40 Number of students learning French = 60 Number of students learning Russian = 80 Number of students learning 2 languages = 50 Number of students learning all 3 languages = 10 Find number of students learning none of these languages? 請問一下大家這題要怎麼解呢? 我對這種題目超沒概念 非常謝謝!! -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 61.217.116.199

07/22 00:18, , 1F
高一上有教文氏圖,就是那個~
07/22 00:18, 1F

07/22 00:24, , 2F
畫圈圈 交集聯集
07/22 00:24, 2F

07/22 08:21, , 3F
答案是?
07/22 08:21, 3F

07/22 08:23, , 4F
這題我機考有遇過ㄎㄎ
07/22 08:23, 4F

07/22 08:24, , 5F
10?
07/22 08:24, 5F
文章代碼(AID): #18XAwP8f (GRE)
討論串 (同標題文章)
文章代碼(AID): #18XAwP8f (GRE)