यदि (n(A)=28), (n(B)=19), और (n\(A\cup B\)=39), तो (n\(A\cap B\)) क्या है?

If (n(A)=28), (n(B)=19), and (n\(A\cup B\)=39), what is (n\(A\cap B\))?

Explanation opens after your attempt
Correct Answer

B. (8)

Step 1

Concept

(n\(A\cap B\)=28+19-39=8). When union is given, add both sets and subtract the union.

Step 2

Why this answer is correct

The correct answer is B. (8). (n\(A\cap B\)=28+19-39=8). When union is given, add both sets and subtract the union.

Step 3

Exam Tip

(n\(A\cap B\)=28+19-39=8)। संघ दिए होने पर दोनों समुच्चयों का योग लेकर संघ घटाएं।

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Mathematics Answer, Explanation and Revision Hints

यदि (n(A)=28), (n(B)=19), और (n\(A\cup B\)=39), तो (n\(A\cap B\)) क्या है? / If (n(A)=28), (n(B)=19), and (n\(A\cup B\)=39), what is (n\(A\cap B\))?

Correct Answer: B. (8). Explanation: (n\(A\cap B\)=28+19-39=8)। संघ दिए होने पर दोनों समुच्चयों का योग लेकर संघ घटाएं। / (n\(A\cap B\)=28+19-39=8). When union is given, add both sets and subtract the union.

Which concept should I revise for this Mathematics MCQ?

(n\(A\cap B\)=28+19-39=8). When union is given, add both sets and subtract the union.

What exam hint can help solve this Mathematics question?

(n\(A\cap B\)=28+19-39=8)। संघ दिए होने पर दोनों समुच्चयों का योग लेकर संघ घटाएं।