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数学题(英文)

a class total gt 48 ppl.tvb now,tvbnow,bttvb4 l# v: @- m9 @3 V
6 ppl din join any club7 B2 H  |  B3 d! _* e; b( r
1/4 of the student in de clas join badminton club n computer club.tvb now,tvbnow,bttvb( r" w8 R1 X2 {9 H1 T( q
the number of badminton club member which is not computer club member is 2 times de member of computer club.+ R+ K3 n+ P  R- r
how many ppl in de clas join badminton club???
28 students are badminton club members only.5.39.217.76/ e$ f8 _  f/ }6 Q1 b" U/ L
公仔箱論壇" ^  c2 C2 b+ {8 A$ `" V% V+ K5 X: y
2 students are in computer club only.
) s5 X. o4 R' t/ i! ], N5.39.217.76
, Z; s) w( m8 itvb now,tvbnow,bttvb12 students are in both badminton and computer club.tvb now,tvbnow,bttvb0 j, |# O3 [. `7 X1 q( u, g: D' |
公仔箱論壇0 d" A/ M7 }6 h8 e; |. p
therefore 28+2+12+6=48
har ???
* R0 A8 M( T! b& H% G48/4=12 ppl ...
/ S  @* \, j3 m% Y1 d5.39.217.76badmintion 2x = computer 1x
5 R. V7 Z7 ^  B- k# _, _5 N公仔箱論壇then 12/3 x=4ppltvb now,tvbnow,bttvb  a1 u, m+ v& \2 s
badmintion 8 ppl ... computer 4 ppl
28 students
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