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disjoint-count MCQ Questions for Class 11

disjoint-count se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

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3 questions tagged with disjoint-count.

Question 1/3 Easy Mathematics Sets Venn Diagrams Class 11 Level 15

यदि \(A\cap B=\varnothing\), (n(A)=24), और (n(B)=37), तो (n\(A\cup B\)) क्या है?

If \(A\cap B=\varnothing\), (n(A)=24), and (n(B)=37), what is (n\(A\cup B\))?

Explanation opens after your attempt
Correct Answer

D. (61)

Step 1

Concept

For disjoint sets, the common part is (0). Therefore, (n\(A\cup B\)=24+37=61).

Step 2

Why this answer is correct

The correct answer is D. (61). For disjoint sets, the common part is (0). Therefore, (n\(A\cup B\)=24+37=61).

Step 3

Exam Tip

असंबद्ध समुच्चयों में साझा भाग (0) होता है। इसलिए (n\(A\cup B\)=24+37=61)।

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Question 2/3 Easy Mathematics Sets Venn Diagrams Class 11 Level 14

यदि \(A\cap B=\varnothing\), (n(A)=15), और (n(B)=18), तो (n\(A\cup B\)) क्या है?

If \(A\cap B=\varnothing\), (n(A)=15), and (n(B)=18), what is (n\(A\cup B\))?

Explanation opens after your attempt
Correct Answer

D. (33)

Step 1

Concept

For disjoint sets, the common part is (0). Therefore, (n\(A\cup B\)=15+18=33).

Step 2

Why this answer is correct

The correct answer is D. (33). For disjoint sets, the common part is (0). Therefore, (n\(A\cup B\)=15+18=33).

Step 3

Exam Tip

असंबद्ध समुच्चयों में साझा भाग (0) होता है। इसलिए (n\(A\cup B\)=15+18=33)।

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Question 3/3 Easy Mathematics Sets Venn Diagrams Class 11 Level 13

यदि \(A\cap B=\varnothing\), (n(A)=6), और (n(B)=11), तो (n\(A\cup B\)) क्या है?

If \(A\cap B=\varnothing\), (n(A)=6), and (n(B)=11), what is (n\(A\cup B\))?

Explanation opens after your attempt
Correct Answer

C. (17)

Step 1

Concept

For disjoint sets, the common part is (0), so (n\(A\cup B\)=6+11=17). Add separate circles directly.

Step 2

Why this answer is correct

The correct answer is C. (17). For disjoint sets, the common part is (0), so (n\(A\cup B\)=6+11=17). Add separate circles directly.

Step 3

Exam Tip

असंबद्ध समुच्चयों में साझा भाग (0) होता है, इसलिए (n\(A\cup B\)=6+11=17)। अलग-अलग वृत्तों को सीधे जोड़ें।

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