Club...........number of students
---------------------------------
chess...............40
drama.............30
math...............25
The table above shows the number of students in three clubs at McAuliffe School. Although no student is in all three clubs, 10 students are both in chess and drama, 5 students are in both chess and math, and 6 students are in both drama and math. Hom many different students are in the three clubs?
A 68
B 69
C 74
D 79
E 84
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1 comment:
As no student is simultaneously in 3 clubs, things get simpler. We just have to sum up all the club members and discount the double-subscriptions: 40+30+25-(10+5+6)=95-21=74. Option (C) is the one to choose.
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