यदि (n\(A\cup B\)=88), (n\(A\cap B\)=26), और (n(A-B)=35) है, तो (n(B)) कितना है?

If (n\(A\cup B\)=88), (n\(A\cap B\)=26), and (n(A-B)=35), what is (n(B))?

Explanation opens after your attempt
Correct Answer

A. (53)

Step 1

Concept

First (B-A=88-35-26=27). Then (n(B)=27+26=53). Working region by region reduces mistakes.

Step 2

Why this answer is correct

The correct answer is A. (53). First (B-A=88-35-26=27). Then (n(B)=27+26=53). Working region by region reduces mistakes.

Step 3

Exam Tip

पहले (B-A=88-35-26=27)। फिर (n(B)=27+26=53)। क्षेत्रवार काम करने से गलती कम होती है।

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Mathematics Answer, Explanation and Revision Hints

यदि (n\(A\cup B\)=88), (n\(A\cap B\)=26), और (n(A-B)=35) है, तो (n(B)) कितना है? / If (n\(A\cup B\)=88), (n\(A\cap B\)=26), and (n(A-B)=35), what is (n(B))?

Correct Answer: A. (53). Explanation: पहले (B-A=88-35-26=27)। फिर (n(B)=27+26=53)। क्षेत्रवार काम करने से गलती कम होती है। / First (B-A=88-35-26=27). Then (n(B)=27+26=53). Working region by region reduces mistakes.

Which concept should I revise for this Mathematics MCQ?

First (B-A=88-35-26=27). Then (n(B)=27+26=53). Working region by region reduces mistakes.

What exam hint can help solve this Mathematics question?

पहले (B-A=88-35-26=27)। फिर (n(B)=27+26=53)। क्षेत्रवार काम करने से गलती कम होती है।