alleryतीन समुच्चयों के लिए परस्पर अतिव्यापी वृत्तों में बाहरी क्षेत्र को मिलाकर कुल कितने क्षेत्र होने चाहिए?
A7
B8
C9
D6
Answer & Solution
Correct answer: B. 8
तीन समुच्चयों के साथ प्रत्येक अवयव प्रत्येक समुच्चय के अंदर या बाहर हो सकता है, इसलिए 2 × 2 × 2 = 8 क्षेत्र।
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