返回列表 回復 發帖

数学题(英文)

a class total gt 48 ppl.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。0 ]4 |7 |% a: d6 c% i8 x: ~1 B2 {
6 ppl din join any club
2 y& L7 T! F  g# U" Y1/4 of the student in de clas join badminton club n computer club.公仔箱論壇2 Z* |2 U' E/ ^
the number of badminton club member which is not computer club member is 2 times de member of computer club.
, r% x3 d) _8 n8 `7 U. K6 Khow many ppl in de clas join badminton club???
28 students are badminton club members only.公仔箱論壇' N- M, ~+ q* D, {: J8 c! W

" t" M: e6 {3 U2 students are in computer club only.* X7 x2 Y% U3 b; B% v3 E7 P9 Z7 K2 k
4 k; ^) f8 J# Y' i; N
12 students are in both badminton and computer club.
) F& ]( r1 z) D, S) wtvb now,tvbnow,bttvb
. y% T/ L& M% i, s" e$ a) ttvboxnow.comtherefore 28+2+12+6=48
har ???
/ ^( v2 U9 A' X( j' ?48/4=12 ppl ...tvb now,tvbnow,bttvb" [! e. @9 Z& h& l- P$ B5 A
badmintion 2x = computer 1x
9 g* o/ }$ v! X% W: L% _4 o1 ythen 12/3 x=4ppl
2 B- E1 D& W) V9 ^4 r公仔箱論壇badmintion 8 ppl ... computer 4 ppl
28 students
返回列表