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数学题(英文)

a class total gt 48 ppl.
  l0 v( k5 o* d' C: `8 R6 u4 x6 ppl din join any clubtvb now,tvbnow,bttvb6 L) V5 V( A9 M& u, s/ P
1/4 of the student in de clas join badminton club n computer club.公仔箱論壇$ V1 Y7 ]/ \! J
the number of badminton club member which is not computer club member is 2 times de member of computer club.
! _5 r1 s" ?; MTVBNOW 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。how many ppl in de clas join badminton club???
28 students are badminton club members only.
5 X5 g6 u& U2 W3 M8 s
7 p# ?" L' S7 O' \5.39.217.762 students are in computer club only.
; n+ n+ q! z4 r8 K' @+ V& o5.39.217.76- U+ r* ~8 q1 Q& K6 z
12 students are in both badminton and computer club.
) e+ W7 Q/ O' j2 w公仔箱論壇
/ t' @, s" r, `5 [, b1 Xtherefore 28+2+12+6=48
har ???
* Y1 h! {' ?3 D* }tvb now,tvbnow,bttvb48/4=12 ppl ...% K6 S* S( d! g5 ]: `  v- M
badmintion 2x = computer 1x
' Y, Q; s% @/ ?  E8 a) B# [公仔箱論壇then 12/3 x=4ppl公仔箱論壇5 _0 d& B0 w* Y( G7 b
badmintion 8 ppl ... computer 4 ppl
28 students
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