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nelston

公爵

Rank: 16Rank: 16Rank: 16Rank: 16
1#
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tT
發表於 2007-9-11 08:17 PM | 只看該作者 ::: 一按馬上把這個話題放上你的facebook!! :::

数学题(英文)

a class total gt 48 ppl.
  L0 X" o+ e3 F% j& d8 B6 ppl din join any club5.39.217.762 l; L$ P  U! H) Y& {! S9 F7 Q0 ]& t! M# J
1/4 of the student in de clas join badminton club n computer club.
! R; W' p/ U  K% q. utvb now,tvbnow,bttvbthe number of badminton club member which is not computer club member is 2 times de member of computer club.tvb now,tvbnow,bttvb+ J0 W3 {# y) X/ s2 u- t
how many ppl in de clas join badminton club???
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genzo2106

中級忍者

Rank: 3Rank: 3
2#
發表於 2007-9-12 01:49 PM | 只看該作者 ::: 一按馬上把這個話題放上你的facebook!! :::
28 students are badminton club members only.公仔箱論壇( L: H( x5 R. Y! a' Q* z

+ Q5 v# [0 l- T( x5.39.217.762 students are in computer club only.公仔箱論壇: c* m- U1 E0 K; R

) T- H9 D* M/ R  A! n( N5.39.217.7612 students are in both badminton and computer club.公仔箱論壇+ M" j3 W1 |3 S
5.39.217.76" K- o) J+ _0 L' ?( y+ i7 X
therefore 28+2+12+6=48
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00360353

Rank: 17Rank: 17Rank: 17Rank: 17Rank: 17
3#
發表於 2007-9-12 06:59 PM | 只看該作者 ::: 一按馬上把這個話題放上你的facebook!! :::
har ???
) b; B8 Y3 ?% ^5 E5.39.217.7648/4=12 ppl ...5.39.217.764 U$ j3 B& Y; ]- U8 J
badmintion 2x = computer 1x; a5 ?0 d) y: T3 y" w
then 12/3 x=4ppl
2 v1 L5 T9 V& Mbadmintion 8 ppl ... computer 4 ppl
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dick007

星級忍者

Rank: 6Rank: 6
4#
發表於 2007-9-13 03:44 PM | 只看該作者 ::: 一按馬上把這個話題放上你的facebook!! :::
28 students
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