यदि (n(U)=110), (n(A)=58), (n(B)=47), और (n\(A\cap B\)=20), तो (n(\(A\cup B\)')) क्या है?

If (n(U)=110), (n(A)=58), (n(B)=47), and (n\(A\cap B\)=20), what is (n(\(A\cup B\)'))?

Explanation opens after your attempt
Correct Answer

A. (25)

Step 1

Concept

First (n\(A\cup B\)=58+47-20=85). Therefore, (n(\(A\cup B\)')=110-85=25).

Step 2

Why this answer is correct

The correct answer is A. (25). First (n\(A\cup B\)=58+47-20=85). Therefore, (n(\(A\cup B\)')=110-85=25).

Step 3

Exam Tip

पहले (n\(A\cup B\)=58+47-20=85)। इसलिए (n(\(A\cup B\)')=110-85=25)।

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Mathematics Answer, Explanation and Revision Hints

यदि (n(U)=110), (n(A)=58), (n(B)=47), और (n\(A\cap B\)=20), तो (n(\(A\cup B\)')) क्या है? / If (n(U)=110), (n(A)=58), (n(B)=47), and (n\(A\cap B\)=20), what is (n(\(A\cup B\)'))?

Correct Answer: A. (25). Explanation: पहले (n\(A\cup B\)=58+47-20=85)। इसलिए (n(\(A\cup B\)')=110-85=25)। / First (n\(A\cup B\)=58+47-20=85). Therefore, (n(\(A\cup B\)')=110-85=25).

Which concept should I revise for this Mathematics MCQ?

First (n\(A\cup B\)=58+47-20=85). Therefore, (n(\(A\cup B\)')=110-85=25).

What exam hint can help solve this Mathematics question?

पहले (n\(A\cup B\)=58+47-20=85)। इसलिए (n(\(A\cup B\)')=110-85=25)।