यदि (n(A)=35), (n(B)=27) और (n\(A\cup B\)=50), तो (n(A-B)) क्या है?

If (n(A)=35), (n(B)=27), and (n\(A\cup B\)=50), what is (n(A-B))?

Explanation opens after your attempt
Correct Answer

C. (23)

Step 1

Concept

First (n\(A\cap B\)=35+27-50=12). Therefore (n(A-B)=35-12=23).

Step 2

Why this answer is correct

The correct answer is C. (23). First (n\(A\cap B\)=35+27-50=12). Therefore (n(A-B)=35-12=23).

Step 3

Exam Tip

पहले (n\(A\cap B\)=35+27-50=12) है। इसलिए (n(A-B)=35-12=23)।

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Mathematics Answer, Explanation and Revision Hints

यदि (n(A)=35), (n(B)=27) और (n\(A\cup B\)=50), तो (n(A-B)) क्या है? / If (n(A)=35), (n(B)=27), and (n\(A\cup B\)=50), what is (n(A-B))?

Correct Answer: C. (23). Explanation: पहले (n\(A\cap B\)=35+27-50=12) है। इसलिए (n(A-B)=35-12=23)। / First (n\(A\cap B\)=35+27-50=12). Therefore (n(A-B)=35-12=23).

Which concept should I revise for this Mathematics MCQ?

First (n\(A\cap B\)=35+27-50=12). Therefore (n(A-B)=35-12=23).

What exam hint can help solve this Mathematics question?

पहले (n\(A\cap B\)=35+27-50=12) है। इसलिए (n(A-B)=35-12=23)।