alleryகணங்கள் A, B, C முறையே 20, 15, 10 உறுப்பினர்களைக் கொண்டுள்ளன. A∩B-இல் 5, B∩C-இல் 3, A∩C-இல் 4, A∩B∩C-இல் 2 உறுப்பினர்கள் உள்ளனர் எனில், |A∪B∪C|-ஐக் காண்க.
A35
B33
C37
D45
Answer & Solution
Correct answer: A. 35
கூடுதல் 45, அதிலிருந்து ஜோடி வெட்டுகளான 12-ஐக் கழிக்க 33 கிடைக்கிறது, பின்னர் 35-ஐப் பெற மும்மை வெட்டான 2-ஐ மீண்டும் கூட்ட வேண்டும்.
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