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complement from regions MCQ Questions for Class 11

complement from regions se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

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2 questions tagged with complement from regions.

Question 1/2 Hard Mathematics Sets Venn Diagrams Class 11 Level 14

किसी वेन आरेख में (n(A-B)=31), (n(B-A)=37), (n\(A\cap B\)=24) और (n(\(A\cup B\)^c)=18) हैं। (n\(A^c\)) कितना है?

In a Venn diagram (n(A-B)=31), (n(B-A)=37), (n\(A\cap B\)=24), and (n(\(A\cup B\)^c)=18). What is (n\(A^c\))?

Explanation opens after your attempt
Correct Answer

B. (55)

Step 1

Concept

\(A^c\) includes (B-A) and the outside region, so (37+18=55). Add all regions outside (A).

Step 2

Why this answer is correct

The correct answer is B. (55). \(A^c\) includes (B-A) and the outside region, so (37+18=55). Add all regions outside (A).

Step 3

Exam Tip

\(A^c\) में (B-A) और बाहर का भाग आएगा, इसलिए (37+18=55)। (A) के बाहर के सभी क्षेत्रों को जोड़ें।

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Question 2/2 Hard Mathematics Sets Venn Diagrams Class 11 Level 13

किसी वेन आरेख में (n(A-B)=25), (n(B-A)=30), (n\(A\cap B\)=20) और (n(\(A\cup B\)^c)=15) हैं। (n\(A^c\)) कितना है?

In a Venn diagram (n(A-B)=25), (n(B-A)=30), (n\(A\cap B\)=20), and (n(\(A\cup B\)^c)=15). What is (n\(A^c\))?

Explanation opens after your attempt
Correct Answer

A. (45)

Step 1

Concept

\(A^c\) includes (B-A) and the outside region, so (30+15=45). Add all regions outside (A).

Step 2

Why this answer is correct

The correct answer is A. (45). \(A^c\) includes (B-A) and the outside region, so (30+15=45). Add all regions outside (A).

Step 3

Exam Tip

\(A^c\) में (B-A) और बाहर का भाग आएगा, इसलिए (30+15=45)। (A) के बाहर के सभी क्षेत्रों को जोड़ें।

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