a class total gt 48 ppl.- ~( q0 m- U% x$ n" ~" j
6 ppl din join any club5.39.217.764 R/ O+ Q. N" J' s; C$ E
1/4 of the student in de clas join badminton club n computer club.公仔箱論壇& ~7 k4 i+ V$ ^- C& |4 g
the number of badminton club member which is not computer club member is 2 times de member of computer club. : o1 q' _. [" w0 g5 O* J) A1 dTVBNOW 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???作者: genzo2106 時間: 2007-9-12 01:49 PM
28 students are badminton club members only. , b6 v" c- m/ `tvb now,tvbnow,bttvb9 S/ [. n1 Q4 y& s- G
2 students are in computer club only.5.39.217.766 v% b; N4 V; d+ `
4 H8 {7 P, J3 y1 \( t% h! Q+ Ttvb now,tvbnow,bttvb12 students are in both badminton and computer club. # U6 B' q8 f: ^- C2 L' Xtvb now,tvbnow,bttvb K% I& D6 s; j& ^9 D1 `8 j5 Z4 j
therefore 28+2+12+6=48作者: 00360353 時間: 2007-9-12 06:59 PM
har ??? 1 }8 c! S4 C' A. H) G5 N+ mtvb now,tvbnow,bttvb48/4=12 ppl ...tvb now,tvbnow,bttvb0 D$ G& f( R) w( b' v
badmintion 2x = computer 1x ! B1 o& V9 {; ?2 B7 |then 12/3 x=4ppl' A5 @+ {* W# w. ?
badmintion 8 ppl ... computer 4 ppl作者: dick007 時間: 2007-9-13 03:44 PM
