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数学题(英文)

a class total gt 48 ppl.公仔箱論壇% U1 {" v1 q/ A) o9 b  c0 a/ [
6 ppl din join any clubTVBNOW 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 n% G$ l5 ]5 S
1/4 of the student in de clas join badminton club n computer club.os.tvboxnow.com% z" n6 q9 D* b! j5 m" g) Z
the number of badminton club member which is not computer club member is 2 times de member of computer club.
3 o, D6 h. C6 u7 L' ghow many ppl in de clas join badminton club???
28 students are badminton club members only.0 m- C# Q( a9 Q7 a
os.tvboxnow.com& m* Q! J! f; x0 d5 Y
2 students are in computer club only.
) ?/ Q" E1 Q4 o$ {6 e- p3 P# [* }4 {os.tvboxnow.com
% N( i8 q7 v  Z+ @0 \6 O; M; los.tvboxnow.com12 students are in both badminton and computer club.
5 N# Y- M" W4 m1 v, @os.tvboxnow.com2 E3 W5 T' o( c* h+ F& H* C. X
therefore 28+2+12+6=48
har ???
6 H; ~( z8 ]+ Q4 N48/4=12 ppl ...
# m+ i' Z9 h' b" a+ Fbadmintion 2x = computer 1xos.tvboxnow.com2 S" ~$ V# M4 W+ v9 G
then 12/3 x=4pplos.tvboxnow.com) }* H0 L( k6 d  {5 X; i5 r9 N4 F; p
badmintion 8 ppl ... computer 4 ppl
28 students
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