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数学题(英文)

a class total gt 48 ppl.
9 t0 C' N9 P. G+ \+ C6 ppl din join any club' s$ h5 N8 a( s
1/4 of the student in de clas join badminton club n computer club.
1 L, a/ p8 m" i( C' Ctvb now,tvbnow,bttvbthe number of badminton club member which is not computer club member is 2 times de member of computer club.1 ~4 E  ^5 C$ _' d6 X' R9 G
how many ppl in de clas join badminton club???
28 students are badminton club members only.
6 z- I7 Q; M8 z0 gTVBNOW 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。0 y3 {, o! O$ Y8 \9 o) {' j& G" @
2 students are in computer club only.0 p9 r: {7 l' P% M
公仔箱論壇+ e) i8 ?1 Q. v' m: K3 U) y
12 students are in both badminton and computer club.
* }% `9 H9 G  a7 s, Z* ^1 A5 u& mtvb now,tvbnow,bttvb
* j- ]5 \4 c- z" P6 T# lTVBNOW 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。therefore 28+2+12+6=48
har ???
) T' g' {* s' x$ T/ L4 E* {48/4=12 ppl ..." L7 }4 j7 v% q" v$ W. O+ J, D
badmintion 2x = computer 1x: C7 N  `, H: i
then 12/3 x=4ppl
$ k( `  V# I( G5 p& ]badmintion 8 ppl ... computer 4 ppl
28 students
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