\(A=\{1,2,3,4,6,12\}\) पर (aRb) यदि \(a\mid b\)। (12) से संबंधित पहले अवयवों की संख्या कितनी है?

On \(A=\{1,2,3,4,6,12\}\), (aRb) if \(a\mid b\). How many first elements are related to (12)?

Explanation opens after your attempt
Correct Answer

D. (6)

Step 1

Concept

All elements of (A) divide (12). Therefore there are (6) pairs of the form ((a,12)).

Step 2

Why this answer is correct

The correct answer is D. (6). All elements of (A) divide (12). Therefore there are (6) pairs of the form ((a,12)).

Step 3

Exam Tip

(A) के सभी तत्व (12) को भाग देते हैं। इसलिए ((a,12)) के (6) युग्म बनेंगे।

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Mathematics Answer, Explanation and Revision Hints

\(A=\{1,2,3,4,6,12\}\) पर (aRb) यदि \(a\mid b\)। (12) से संबंधित पहले अवयवों की संख्या कितनी है? / On \(A=\{1,2,3,4,6,12\}\), (aRb) if \(a\mid b\). How many first elements are related to (12)?

Correct Answer: D. (6). Explanation: (A) के सभी तत्व (12) को भाग देते हैं। इसलिए ((a,12)) के (6) युग्म बनेंगे। / All elements of (A) divide (12). Therefore there are (6) pairs of the form ((a,12)).

Which concept should I revise for this Mathematics MCQ?

All elements of (A) divide (12). Therefore there are (6) pairs of the form ((a,12)).

What exam hint can help solve this Mathematics question?

(A) के सभी तत्व (12) को भाग देते हैं। इसलिए ((a,12)) के (6) युग्म बनेंगे।