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数学题(英文)

a class total gt 48 ppl.
2 k; p* i8 B( Ftvb now,tvbnow,bttvb6 ppl din join any clubTVBNOW 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 |; Z7 e9 l4 X
1/4 of the student in de clas join badminton club n computer club.
% D$ n7 L8 o8 L( Vtvb now,tvbnow,bttvbthe number of badminton club member which is not computer club member is 2 times de member of computer club.tvb now,tvbnow,bttvb* g' }- C  ~2 I* Y+ C. Q$ n1 W
how many ppl in de clas join badminton club???
28 students are badminton club members only.tvb now,tvbnow,bttvb/ R- g/ S+ c3 n, X% E4 X! \

9 U, Z8 r  b3 D  q2 students are in computer club only.
3 i% \8 D) a6 i7 `9 f/ P0 f5.39.217.77:8898
6 s6 f, t1 ~/ y9 A公仔箱論壇12 students are in both badminton and computer club.
- Q0 f5 S) e8 V$ m$ rtvb now,tvbnow,bttvb
1 U6 v3 o+ J& I公仔箱論壇therefore 28+2+12+6=48
har ???5.39.217.77:8898! p9 _* H& z* T
48/4=12 ppl ...公仔箱論壇* D8 d3 ~& J% y1 M; e( \
badmintion 2x = computer 1x
# c7 j- T! c) b6 rthen 12/3 x=4ppltvb now,tvbnow,bttvb6 w0 }' n  v% C
badmintion 8 ppl ... computer 4 ppl
28 students
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