यदि \(A=\{1,2,3,4\}\), \(B=\{2,4,6,8\}\) और \(R=\{(a,b):\frac{b}{a}\in\mathbb{N}\}\) है, तो (|R|) क्या है?

If \(A=\{1,2,3,4\}\), \(B=\{2,4,6,8\}\), and \(R=\{(a,b):\frac{b}{a}\in\mathbb{N}\}\), what is (|R|)?

Explanation opens after your attempt
Correct Answer

C. (11)

Step 1

Concept

This is the condition \(a\mid b\); for (a=1,2,3,4), the counts are (4,4,1,2). The total is (11) pairs.

Step 2

Why this answer is correct

The correct answer is C. (11). This is the condition \(a\mid b\); for (a=1,2,3,4), the counts are (4,4,1,2). The total is (11) pairs.

Step 3

Exam Tip

यह \(a\mid b\) की शर्त है; (a=1,2,3,4) के लिए गिनती (4,4,1,2) है। कुल (11) युग्म मिलते हैं।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2,3,4\}\), \(B=\{2,4,6,8\}\) और \(R=\{(a,b):\frac{b}{a}\in\mathbb{N}\}\) है, तो (|R|) क्या है? / If \(A=\{1,2,3,4\}\), \(B=\{2,4,6,8\}\), and \(R=\{(a,b):\frac{b}{a}\in\mathbb{N}\}\), what is (|R|)?

Correct Answer: C. (11). Explanation: यह \(a\mid b\) की शर्त है; (a=1,2,3,4) के लिए गिनती (4,4,1,2) है। कुल (11) युग्म मिलते हैं। / This is the condition \(a\mid b\); for (a=1,2,3,4), the counts are (4,4,1,2). The total is (11) pairs.

Which concept should I revise for this Mathematics MCQ?

This is the condition \(a\mid b\); for (a=1,2,3,4), the counts are (4,4,1,2). The total is (11) pairs.

What exam hint can help solve this Mathematics question?

यह \(a\mid b\) की शर्त है; (a=1,2,3,4) के लिए गिनती (4,4,1,2) है। कुल (11) युग्म मिलते हैं।