標題: 数学题(英文) [打印本頁]

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作者: nelston    時間: 2007-9-11 08:17 PM     標題: 数学题(英文)

a class total gt 48 ppl.
0 ?. ], G' D# p) e- I5 _' D7 z$ W6 ppl din join any club公仔箱論壇# k2 A/ c' s8 K/ {
1/4 of the student in de clas join badminton club n computer club.
* F( B: s- x- Kthe number of badminton club member which is not computer club member is 2 times de member of computer club.
; t4 }% K# q* n& f+ R- h; Atvb now,tvbnow,bttvbhow many ppl in de clas join badminton club???

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作者: genzo2106    時間: 2007-9-12 01:49 PM

28 students are badminton club members only.
3 Y  J* r" q! q! {- ^tvb now,tvbnow,bttvb
5 s4 d( d( i6 V" `4 V2 students are in computer club only.www3.tvboxnow.com; ^" h4 h& v- U+ a
- u) u$ b# K5 z- \4 j# Q
12 students are in both badminton and computer club.
( [  D# W3 v& @8 q5 T3 F公仔箱論壇& e  M6 q: C4 k  m' c* \$ V
therefore 28+2+12+6=48

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作者: 00360353    時間: 2007-9-12 06:59 PM

har ???
% U" t. Q" Y: e% @+ T$ {tvb now,tvbnow,bttvb48/4=12 ppl ...www3.tvboxnow.com  o+ E) a. ]8 h7 G, ^" n/ \6 t- j
badmintion 2x = computer 1x
: D0 Z# S. v1 Wwww3.tvboxnow.comthen 12/3 x=4pplwww3.tvboxnow.com1 s7 _" R. s) F3 ~( W  F( E/ L0 M5 {
badmintion 8 ppl ... computer 4 ppl

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作者: dick007    時間: 2007-9-13 03:44 PM

28 students

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