返回列表 回復 發帖

数学题(英文)

a class total gt 48 ppl.
0 h3 o9 Q% ~9 z5 |  z4 h% ]www2.tvboxnow.com6 ppl din join any clubwww2.tvboxnow.com7 d. U  Q. {8 O& H/ G9 [
1/4 of the student in de clas join badminton club n computer club.tvb now,tvbnow,bttvb6 j) b9 y! Z% D) I0 l
the number of badminton club member which is not computer club member is 2 times de member of computer club.TVBNOW 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。. _1 u/ a8 i, t7 p
how many ppl in de clas join badminton club???
28 students are badminton club members only.
& f0 i, ~* Y  Z/ w6 Fwww2.tvboxnow.com+ z! D8 |8 `( i3 j, P0 V
2 students are in computer club only.tvb now,tvbnow,bttvb+ Y8 t5 O" g* R6 }. t( X8 [

5 j, c$ z% ~* [6 e+ [6 @12 students are in both badminton and computer club.
% e& ^8 m3 D/ y+ \- D4 |& x3 j0 @: E! g6 R% g
therefore 28+2+12+6=48
har ???tvb now,tvbnow,bttvb! U, Y6 I! e1 H0 Z; Q" P8 A) ?9 \
48/4=12 ppl ...8 b+ [! t$ G& w5 Z, X5 m
badmintion 2x = computer 1x
' x' ~6 T/ u- C1 J8 Bwww2.tvboxnow.comthen 12/3 x=4ppl% |# r$ a% K! ?1 \4 M' V: L. p6 I- `
badmintion 8 ppl ... computer 4 ppl
28 students
返回列表