यदि (n(U)=64), केवल (A) में (18), \(A\cap B\) में (12), और केवल (B) में (20) हैं, तो बाहर का क्षेत्र कितना है?
If (n(U)=64), only (A) has (18), \(A\cap B\) has (12), and only (B) has (20), what is the outside region?
Explanation opens after your attempt
A. (14)
Concept
The three known regions are (18+12+20=50). The outside region is (64-50=14).
Why this answer is correct
The correct answer is A. (14). The three known regions are (18+12+20=50). The outside region is (64-50=14).
Exam Tip
ज्ञात तीन क्षेत्र (18+12+20=50) हैं। बाहर का क्षेत्र (64-50=14) है।
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