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 |