यदि \(A=\{1,2,3,4\}\) और \(B=\{2,4,6,8\}\) है, तो \(A\times B\) में ऐसे कितने युग्म ((x,y)) हैं जिनके लिए (y) (x) का गुणज है?

If \(A=\{1,2,3,4\}\) and \(B=\{2,4,6,8\}\), how many pairs ((x,y)) in \(A\times B\) have (y) as a multiple of (x)?

Explanation opens after your attempt
Correct Answer

D. (11)

Step 1

Concept

For (x=1) there are (4), for (x=2) there are (4), for (x=3) there is (1), and for (x=4) there are (2). Total is (11).

Step 2

Why this answer is correct

The correct answer is D. (11). For (x=1) there are (4), for (x=2) there are (4), for (x=3) there is (1), and for (x=4) there are (2). Total is (11).

Step 3

Exam Tip

(x=1) से (4), (x=2) से (4), (x=3) से (1), और (x=4) से (2) युग्म मिलते हैं। कुल (4+4+1+2=11) है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2,3,4\}\) और \(B=\{2,4,6,8\}\) है, तो \(A\times B\) में ऐसे कितने युग्म ((x,y)) हैं जिनके लिए (y) (x) का गुणज है? / If \(A=\{1,2,3,4\}\) and \(B=\{2,4,6,8\}\), how many pairs ((x,y)) in \(A\times B\) have (y) as a multiple of (x)?

Correct Answer: D. (11). Explanation: (x=1) से (4), (x=2) से (4), (x=3) से (1), और (x=4) से (2) युग्म मिलते हैं। कुल (4+4+1+2=11) है। / For (x=1) there are (4), for (x=2) there are (4), for (x=3) there is (1), and for (x=4) there are (2). Total is (11).

Which concept should I revise for this Mathematics MCQ?

For (x=1) there are (4), for (x=2) there are (4), for (x=3) there is (1), and for (x=4) there are (2). Total is (11).

What exam hint can help solve this Mathematics question?

(x=1) से (4), (x=2) से (4), (x=3) से (1), और (x=4) से (2) युग्म मिलते हैं। कुल (4+4+1+2=11) है।