यदि (n(U)=76), बाहर का क्षेत्र (18), केवल (A) (20), और केवल (B) (23) है, तो (n\(A\cap B\)) क्या है?

If (n(U)=76), the outside region is (18), only (A) is (20), and only (B) is (23), what is (n\(A\cap B\))?

Explanation opens after your attempt
Correct Answer

A. (15)

Step 1

Concept

The common part is (76-18-20-23=15). For an unknown region, subtract known regions from the total.

Step 2

Why this answer is correct

The correct answer is A. (15). The common part is (76-18-20-23=15). For an unknown region, subtract known regions from the total.

Step 3

Exam Tip

साझा भाग (76-18-20-23=15) है। अज्ञात क्षेत्र के लिए कुल से ज्ञात क्षेत्र घटाएं।

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यदि (n(U)=76), बाहर का क्षेत्र (18), केवल (A) (20), और केवल (B) (23) है, तो (n\(A\cap B\)) क्या है? / If (n(U)=76), the outside region is (18), only (A) is (20), and only (B) is (23), what is (n\(A\cap B\))?

Correct Answer: A. (15). Explanation: साझा भाग (76-18-20-23=15) है। अज्ञात क्षेत्र के लिए कुल से ज्ञात क्षेत्र घटाएं। / The common part is (76-18-20-23=15). For an unknown region, subtract known regions from the total.

Which concept should I revise for this Mathematics MCQ?

The common part is (76-18-20-23=15). For an unknown region, subtract known regions from the total.

What exam hint can help solve this Mathematics question?

साझा भाग (76-18-20-23=15) है। अज्ञात क्षेत्र के लिए कुल से ज्ञात क्षेत्र घटाएं।