यदि \(A=\{2,3,5,7\}\) और \(B=\{5,7,11,13\}\), तो \(A\cup B\) में कितने अवयव हैं?

If \(A=\{2,3,5,7\}\) and \(B=\{5,7,11,13\}\), how many elements are in \(A\cup B\)?

Explanation opens after your attempt
Correct Answer

B. (6)

Step 1

Concept

\(A\cup B={2,3,5,7,11,13}\). Therefore it has (6) elements.

Step 2

Why this answer is correct

The correct answer is B. (6). \(A\cup B={2,3,5,7,11,13}\). Therefore it has (6) elements.

Step 3

Exam Tip

\(A\cup B={2,3,5,7,11,13}\) है। इसलिए इसमें (6) अवयव हैं।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{2,3,5,7\}\) और \(B=\{5,7,11,13\}\), तो \(A\cup B\) में कितने अवयव हैं? / If \(A=\{2,3,5,7\}\) and \(B=\{5,7,11,13\}\), how many elements are in \(A\cup B\)?

Correct Answer: B. (6). Explanation: \(A\cup B={2,3,5,7,11,13}\) है। इसलिए इसमें (6) अवयव हैं। / \(A\cup B={2,3,5,7,11,13}\). Therefore it has (6) elements.

Which concept should I revise for this Mathematics MCQ?

\(A\cup B={2,3,5,7,11,13}\). Therefore it has (6) elements.

What exam hint can help solve this Mathematics question?

\(A\cup B={2,3,5,7,11,13}\) है। इसलिए इसमें (6) अवयव हैं।