यदि (n(A)=20) और (n\(A\setminus B\)=13) है, तो (n\(A\cap B\)) क्या होगा?

If (n(A)=20) and (n\(A\setminus B\)=13), what is (n\(A\cap B\))?

Explanation opens after your attempt
Correct Answer

A. (7)

Step 1

Concept

(A) is divided into \(A\setminus B\) and \(A\cap B\). Therefore (n\(A\cap B\)=20-13=7).

Step 2

Why this answer is correct

The correct answer is A. (7). (A) is divided into \(A\setminus B\) and \(A\cap B\). Therefore (n\(A\cap B\)=20-13=7).

Step 3

Exam Tip

(A) दो भागों \(A\setminus B\) और \(A\cap B\) में बंटता है। इसलिए (n\(A\cap B\)=20-13=7)।

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Mathematics Answer, Explanation and Revision Hints

यदि (n(A)=20) और (n\(A\setminus B\)=13) है, तो (n\(A\cap B\)) क्या होगा? / If (n(A)=20) and (n\(A\setminus B\)=13), what is (n\(A\cap B\))?

Correct Answer: A. (7). Explanation: (A) दो भागों \(A\setminus B\) और \(A\cap B\) में बंटता है। इसलिए (n\(A\cap B\)=20-13=7)। / (A) is divided into \(A\setminus B\) and \(A\cap B\). Therefore (n\(A\cap B\)=20-13=7).

Which concept should I revise for this Mathematics MCQ?

(A) is divided into \(A\setminus B\) and \(A\cap B\). Therefore (n\(A\cap B\)=20-13=7).

What exam hint can help solve this Mathematics question?

(A) दो भागों \(A\setminus B\) और \(A\cap B\) में बंटता है। इसलिए (n\(A\cap B\)=20-13=7)।