数学题(英文)

nelston

a class total gt 48 ppl.
7 Y9 U; Z2 t& x0 T5 U1 e3 V6 @# d$ `公仔箱論壇6 ppl din join any clubwww2.tvboxnow.com2 E% n# r) s0 K: [% g  `
1/4 of the student in de clas join badminton club n computer club.
" k& i2 J( A% g* ?5 B! F  itvb now,tvbnow,bttvbthe number of badminton club member which is not computer club member is 2 times de member of computer club.
% Y  ^8 R/ p: E. f9 Z- ohow many ppl in de clas join badminton club???

genzo2106

28 students are badminton club members only.
* {) |) h+ C' ywww2.tvboxnow.com公仔箱論壇, q2 A% i" Q* X  h/ d% o( M' m, q9 p) \
2 students are in computer club only.3 V( C& q1 \6 K, o

) S7 X' @$ L- n" U* l: cwww2.tvboxnow.com12 students are in both badminton and computer club.
  n- V" D' h9 }3 Y  X; f1 Xwww2.tvboxnow.comwww2.tvboxnow.com( i: w1 j* g7 M
therefore 28+2+12+6=48

00360353

har ???! x2 P) m: \- Q0 A
48/4=12 ppl ...0 o0 d  a8 i" {; O( V, I
badmintion 2x = computer 1x
1 D0 p) V. j5 [" b. P2 Qthen 12/3 x=4ppl  J3 p! G& ]( E+ a& F; d
badmintion 8 ppl ... computer 4 ppl

dick007

28 students