यदि केवल (A) में (12), केवल (B) में (15), केवल (C) में (10), ठीक दो में (33), तीनों में (9) और बाहर (21) हैं, तो (n(U)) क्या है?
If only (A) has (12), only (B) has (15), only (C) has (10), exactly two has (33), all three has (9), and outside has (21), what is (n(U))?
Explanation opens after your attempt
A. (100)
Concept
The universal set contains all inside and outside regions, so (12+15+10+33+9+21=100). Do not skip any region.
Why this answer is correct
The correct answer is A. (100). The universal set contains all inside and outside regions, so (12+15+10+33+9+21=100). Do not skip any region.
Exam Tip
सार्वत्रिक समुच्चय में अंदर और बाहर सभी क्षेत्र आते हैं, इसलिए (12+15+10+33+9+21=100)। कोई भी क्षेत्र न छोड़ें।
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