यदि \(A=\{1,2,3\}\) और \(B=\{3,6,9,12\}\), तो \(A\times B\) में (b) संख्या (a) का गुणज हो, ऐसे युग्म कितने हैं?

If \(A=\{1,2,3\}\) and \(B=\{3,6,9,12\}\), how many pairs in \(A\times B\) have (b) as a multiple of (a)?

Explanation opens after your attempt
Correct Answer

C. (10)

Step 1

Concept

For (a=1) there are (4), for (a=2) there are (2), and for (a=3) there are (4) pairs. Total is (10).

Step 2

Why this answer is correct

The correct answer is C. (10). For (a=1) there are (4), for (a=2) there are (2), and for (a=3) there are (4) pairs. Total is (10).

Step 3

Exam Tip

(a=1) पर (4), (a=2) पर (2), और (a=3) पर (4) युग्म मिलते हैं। कुल (10) है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2,3\}\) और \(B=\{3,6,9,12\}\), तो \(A\times B\) में (b) संख्या (a) का गुणज हो, ऐसे युग्म कितने हैं? / If \(A=\{1,2,3\}\) and \(B=\{3,6,9,12\}\), how many pairs in \(A\times B\) have (b) as a multiple of (a)?

Correct Answer: C. (10). Explanation: (a=1) पर (4), (a=2) पर (2), और (a=3) पर (4) युग्म मिलते हैं। कुल (10) है। / For (a=1) there are (4), for (a=2) there are (2), and for (a=3) there are (4) pairs. Total is (10).

Which concept should I revise for this Mathematics MCQ?

For (a=1) there are (4), for (a=2) there are (2), and for (a=3) there are (4) pairs. Total is (10).

What exam hint can help solve this Mathematics question?

(a=1) पर (4), (a=2) पर (2), और (a=3) पर (4) युग्म मिलते हैं। कुल (10) है।