数学题(英文)

a class total gt 48 ppl.tvb now,tvbnow,bttvb$ V9 L& T+ [3 p4 j, F7 ~
6 ppl din join any clubtvb now,tvbnow,bttvb/ v c Z4 i; l+ h: ]- `
1/4 of the student in de clas join badminton club n computer club.
the number of badminton club member which is not computer club member is 2 times de member of computer club.
how many ppl in de clas join badminton club???

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genzo2106

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發表於 2007-9-12 01:49 PM | 只看該作者

28 students are badminton club members only.
& U0 W& W. u( o+ X/ Z0 a
2 students are in computer club only.
2 C" }7 Z2 ~( m. l" [
12 students are in both badminton and computer club." y( r8 Q& z. Z) x' K8 Y

therefore 28+2+12+6=48