28 students are badminton club members only.
/ @: G# D4 T3 U2 ^8 n8 R* P1 w+ q: ^0 Q, N& B
2 students are in computer club only.
6 J C: S; u( r2 z$ N5.39.217.775.39.217.773 F# j7 Z6 }# t2 d" y. i2 m
12 students are in both badminton and computer club.5.39.217.77, Z- w$ X5 n* G! y2 S& i P% j
% S2 H7 {* z9 ?( b; q0 g* e
therefore 28+2+12+6=48 |