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標題: 数学题(英文) [打印本頁]

作者: nelston    時間: 2007-9-11 08:17 PM     標題: 数学题(英文)

a class total gt 48 ppl.
$ b7 p, \' J3 M( F7 [8 u( ^tvb now,tvbnow,bttvb6 ppl din join any club
6 ?/ ^8 M, _2 D8 D& @2 [tvb now,tvbnow,bttvb1/4 of the student in de clas join badminton club n computer club.
( T# g' A6 Z* T, Y4 q- r/ `the number of badminton club member which is not computer club member is 2 times de member of computer club.
3 \& Q5 B+ h2 p- C: ktvb now,tvbnow,bttvbhow many ppl in de clas join badminton club???
作者: genzo2106    時間: 2007-9-12 01:49 PM

28 students are badminton club members only.% N: B: \, L7 q0 n

! r$ [$ G* Y, b) Ztvb now,tvbnow,bttvb2 students are in computer club only.
  x+ n9 B+ X. s, M8 XTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。
( u; }3 i* W9 y公仔箱論壇12 students are in both badminton and computer club.
5 R/ ~. T9 x0 b7 h& t8 o: a! F  ^
therefore 28+2+12+6=48
作者: 00360353    時間: 2007-9-12 06:59 PM

har ???% A# I: b+ f# Y% D1 C/ z7 Z
48/4=12 ppl ...  J0 c/ k/ }2 D$ U2 l( |
badmintion 2x = computer 1xTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。7 l0 i) O# H! [5 S
then 12/3 x=4ppl
9 B4 C7 x- K" n9 }# V# l! Gtvb now,tvbnow,bttvbbadmintion 8 ppl ... computer 4 ppl
作者: dick007    時間: 2007-9-13 03:44 PM

28 students




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