यदि \(A=\{1,2,3,4,5,6\}\) और \(B=\{2,4,6\}\) हैं, तो (A-B) में कितने अवयव हैं?

If \(A=\{1,2,3,4,5,6\}\) and \(B=\{2,4,6\}\), how many elements are in (A-B)?

Explanation opens after your attempt
Correct Answer

A. (3)

Step 1

Concept

(A-B={1,3,5}), so it has (3) elements. First find the difference, then count.

Step 2

Why this answer is correct

The correct answer is A. (3). (A-B={1,3,5}), so it has (3) elements. First find the difference, then count.

Step 3

Exam Tip

(A-B={1,3,5}) है, इसलिए इसमें (3) अवयव हैं। पहले अंतर निकालें, फिर गिनें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2,3,4,5,6\}\) और \(B=\{2,4,6\}\) हैं, तो (A-B) में कितने अवयव हैं? / If \(A=\{1,2,3,4,5,6\}\) and \(B=\{2,4,6\}\), how many elements are in (A-B)?

Correct Answer: A. (3). Explanation: (A-B={1,3,5}) है, इसलिए इसमें (3) अवयव हैं। पहले अंतर निकालें, फिर गिनें। / (A-B={1,3,5}), so it has (3) elements. First find the difference, then count.

Which concept should I revise for this Mathematics MCQ?

(A-B={1,3,5}), so it has (3) elements. First find the difference, then count.

What exam hint can help solve this Mathematics question?

(A-B={1,3,5}) है, इसलिए इसमें (3) अवयव हैं। पहले अंतर निकालें, फिर गिनें।