28 students are badminton club members only.
" m( m* v9 w* L' k2 l( s" D6 I公仔箱論壇
* ?/ W+ U% |# w9 y, B- ftvboxnow.com2 students are in computer club only.
$ ?7 b; |0 M7 j L1 E公仔箱論壇
9 `+ d. ?8 d8 c& l12 students are in both badminton and computer club.
" Q) G8 M, c: P* i& l公仔箱論壇tvb now,tvbnow,bttvb; l; r9 L; {6 a* n" q+ o/ u
therefore 28+2+12+6=48 |
發表於 2007-9-12 01:49 PM
| 