28 students are badminton club members only.tvb now,tvbnow,bttvb# j6 k, p" U/ F
' V5 m6 \. D ^" q0 Y8 A6 U2 students are in computer club only.
; P* s- q# x7 v% I公仔箱論壇公仔箱論壇 b' ?) d# b. `% U
12 students are in both badminton and computer club.
+ D* H+ d3 ~+ W3 ^/ Ytvb now,tvbnow,bttvbtvb now,tvbnow,bttvb! N" x# \6 a9 G% x
therefore 28+2+12+6=48 |