数学题(英文)

a class total gt 48 ppl.www2.tvboxnow.com5 b( ~, |6 T$ a7 F- g
6 ppl din join any club
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.
公仔箱論壇" L) F: h9 j3 B* Q
2 students are in computer club only.www2.tvboxnow.com8 ]) c5 C+ i- Y# V6 Z/ S

12 students are in both badminton and computer club.9 v0 F' O2 l' y' x" x/ M) b5 J+ A
www2.tvboxnow.com6 w' B1 G9 {7 @7 Y6 n5 g$ p$ H4 i2 j
therefore 28+2+12+6=48