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数学题(英文)

a class total gt 48 ppl.3 [" n( m! l7 j5 W  \$ A' A1 ~1 ~
6 ppl din join any club
! `% k6 _5 o  ntvb now,tvbnow,bttvb1/4 of the student in de clas join badminton club n computer club.公仔箱論壇( o, f, L. U6 b. p$ U4 v
the number of badminton club member which is not computer club member is 2 times de member of computer club.
% C- q# B3 Q0 J, p' i" Vtvb now,tvbnow,bttvbhow many ppl in de clas join badminton club???
28 students are badminton club members only.
8 H: Z+ _2 ^! h' M
& m1 [) {6 {8 q  Q* H2 students are in computer club only.
+ B, g- m; ?0 S2 rtvb now,tvbnow,bttvb& o/ F- k$ L. M% g7 c0 M6 ~+ c
12 students are in both badminton and computer club.tvb now,tvbnow,bttvb  W+ r2 h7 P: g6 d1 H
公仔箱論壇' `1 E* F9 R6 T6 C# b; K& R: a
therefore 28+2+12+6=48
har ???www2.tvboxnow.com6 `% S. i1 K. \3 M1 G
48/4=12 ppl ...
, L0 V- Y1 \! X, W* N, _badmintion 2x = computer 1x
* L2 Q, r! P- R( Cthen 12/3 x=4ppl公仔箱論壇1 j0 G7 K/ L5 _
badmintion 8 ppl ... computer 4 ppl
28 students
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