数学题(英文)

a class total gt 48 ppl.TVBNOW 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。- J. u9 B5 x) @! s+ c0 e
6 ppl din join any club公仔箱論壇2 J0 l% p9 P9 J/ @/ L& U( O
1/4 of the student in de clas join badminton club n computer club.
the number of badminton club member which is not computer club member is 2 times de member of computer club.TVBNOW 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。. `8 U% r) |' Z M( ]
how many ppl in de clas join badminton club???

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genzo2106

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發表於 2007-9-12 01:49 PM | 只看該作者

28 students are badminton club members only.
5.39.217.77+ L; _, U% T3 Y+ F H" c/ x. o
2 students are in computer club only.tvb now,tvbnow,bttvb+ Z" Y4 ^( E6 j: b) N
$ J3 k) U1 l: ?: ^' X
12 students are in both badminton and computer club.5.39.217.775 J; w% f7 ~+ i
公仔箱論壇9 w7 a2 p% }8 T- o- ?
therefore 28+2+12+6=48