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

If \(A=\{1,2,3,4\}\) and \(B=\{1,2,3,4\}\), how many pairs ((x,y)) in \(A\times B\) satisfy \(x\mid y\)?

Explanation opens after your attempt
Correct Answer

C. (8)

Step 1

Concept

For (x=1) there are (4), for (x=2) there are (2), for (x=3) there is (1), and for (x=4) there is (1). Total is (4+2+1+1=8).

Step 2

Why this answer is correct

The correct answer is C. (8). For (x=1) there are (4), for (x=2) there are (2), for (x=3) there is (1), and for (x=4) there is (1). Total is (4+2+1+1=8).

Step 3

Exam Tip

(x=1) से (4), (x=2) से (2), (x=3) से (1), (x=4) से (1) युग्म मिलते हैं। कुल (4+2+1+1=8) है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2,3,4\}\) और \(B=\{1,2,3,4\}\) है, तो \(A\times B\) में ऐसे कितने युग्म ((x,y)) हैं जिनके लिए \(x\mid y\) है? / If \(A=\{1,2,3,4\}\) and \(B=\{1,2,3,4\}\), how many pairs ((x,y)) in \(A\times B\) satisfy \(x\mid y\)?

Correct Answer: C. (8). Explanation: (x=1) से (4), (x=2) से (2), (x=3) से (1), (x=4) से (1) युग्म मिलते हैं। कुल (4+2+1+1=8) है। / For (x=1) there are (4), for (x=2) there are (2), for (x=3) there is (1), and for (x=4) there is (1). Total is (4+2+1+1=8).

Which concept should I revise for this Mathematics MCQ?

For (x=1) there are (4), for (x=2) there are (2), for (x=3) there is (1), and for (x=4) there is (1). Total is (4+2+1+1=8).

What exam hint can help solve this Mathematics question?

(x=1) से (4), (x=2) से (2), (x=3) से (1), (x=4) से (1) युग्म मिलते हैं। कुल (4+2+1+1=8) है।