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.www3.tvboxnow.com4 j4 n' j9 D5 ^) @
6 ppl din join any clubwww3.tvboxnow.com1 g7 T0 P' F% p2 D1 D
1/4 of the student in de clas join badminton club n computer club.
1 }5 ]. g% Z( O9 Q: g+ n7 otvb now,tvbnow,bttvbthe number of badminton club member which is not computer club member is 2 times de member of computer club.( n8 e* N4 ^+ {' p5 q: z* ~
how 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.: A2 x6 P4 X5 u  ?. c7 n; P
tvb now,tvbnow,bttvb  _, P' e& K! Z5 E  t+ M2 n
2 students are in computer club only.公仔箱論壇. a4 k, S2 t2 A$ Y9 f# z3 M

5 B* c6 ~& f0 I6 D3 n- p9 m: @8 p12 students are in both badminton and computer club.; d: l: t( {/ E

; M8 ~/ |8 N& w3 E  ]( d: t) p+ l9 ^therefore 28+2+12+6=48

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

har ???
# j# O0 e" A4 W% Y  `tvb now,tvbnow,bttvb48/4=12 ppl ...
" B: o  B2 M7 U! o# f2 bbadmintion 2x = computer 1x6 m/ E$ p+ i( j# Q/ j$ Y, y
then 12/3 x=4ppl
! m5 J8 V' y' `4 b5 R) Dbadmintion 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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