यदि (n(A)=58), (n(B)=44), (n(A-B)=23) है, तो (n\(A\cup B\)) क्या होगा?

If (n(A)=58), (n(B)=44), and (n(A-B)=23), what is (n\(A\cup B\))?

Explanation opens after your attempt
Correct Answer

A. (,67,)

Step 1

Concept

(n\(A\cap B\)=58-23=35). Therefore (n\(A\cup B\)=58+44-35=67).

Step 2

Why this answer is correct

The correct answer is A. (,67,). (n\(A\cap B\)=58-23=35). Therefore (n\(A\cup B\)=58+44-35=67).

Step 3

Exam Tip

(n\(A\cap B\)=58-23=35) है। इसलिए (n\(A\cup B\)=58+44-35=67)।

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Mathematics Answer, Explanation and Revision Hints

यदि (n(A)=58), (n(B)=44), (n(A-B)=23) है, तो (n\(A\cup B\)) क्या होगा? / If (n(A)=58), (n(B)=44), and (n(A-B)=23), what is (n\(A\cup B\))?

Correct Answer: A. (,67,). Explanation: (n\(A\cap B\)=58-23=35) है। इसलिए (n\(A\cup B\)=58+44-35=67)। / (n\(A\cap B\)=58-23=35). Therefore (n\(A\cup B\)=58+44-35=67).

Which concept should I revise for this Mathematics MCQ?

(n\(A\cap B\)=58-23=35). Therefore (n\(A\cup B\)=58+44-35=67).

What exam hint can help solve this Mathematics question?

(n\(A\cap B\)=58-23=35) है। इसलिए (n\(A\cup B\)=58+44-35=67)।