(n(A-B)=41) और (n\(A\cap B\)=22) है। (n(A)) कितना होगा?
(n(A-B)=41) and (n\(A\cap B\)=22). What is (n(A))?
Explanation opens after your attempt
B. (63)
Concept
Whole (A) is made of (A-B) and \(A\cap B\). Hence (n(A)=41+22=63).
Why this answer is correct
The correct answer is B. (63). Whole (A) is made of (A-B) and \(A\cap B\). Hence (n(A)=41+22=63).
Exam Tip
पूरा (A), (A-B) और \(A\cap B\) से बनता है। इसलिए (n(A)=41+22=63)।
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