28 students are badminton club members only.
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2 students are in computer club only.tvb now,tvbnow,bttvb# I/ N4 m/ d3 \- h$ H0 A& N
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12 students are in both badminton and computer club.) s7 b/ J' k3 p. b. q- J
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therefore 28+2+12+6=48 |