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。3 [$ ~4 g/ U! y3 D. h" x2 [! b
6 ppl din join any clubtvb now,tvbnow,bttvb) m, o3 ]: g) ^2 L/ e5 ^1 I
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., D* |1 n! X; a" Q* B0 d z) `; `
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.公仔箱論壇3 R; Y8 C  b9 K+ ~' u
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。  f2 L1 c4 T9 _/ T! v
2 students are in computer club only.
公仔箱論壇/ c1 `" A1 j! M  L1 T
12 students are in both badminton and computer club.

therefore 28+2+12+6=48