यदि \(A=\{1,3\}\) और \(B=\{2,6\}\) हैं, तो \(A\times B\) में दोनों घटकों का गुणनफल सम होने वाले कितने युग्म हैं?

If \(A=\{1,3\}\) and \(B=\{2,6\}\), how many pairs in \(A\times B\) have an even product of components?

Explanation opens after your attempt
Correct Answer

C. (4)

Step 1

Concept

The second component is always even, so every product is even. There are \(2\times 2=4\) pairs in total.

Step 2

Why this answer is correct

The correct answer is C. (4). The second component is always even, so every product is even. There are \(2\times 2=4\) pairs in total.

Step 3

Exam Tip

दूसरा घटक हमेशा सम है, इसलिए हर गुणनफल सम होगा। कुल \(2\times 2=4\) युग्म हैं।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,3\}\) और \(B=\{2,6\}\) हैं, तो \(A\times B\) में दोनों घटकों का गुणनफल सम होने वाले कितने युग्म हैं? / If \(A=\{1,3\}\) and \(B=\{2,6\}\), how many pairs in \(A\times B\) have an even product of components?

Correct Answer: C. (4). Explanation: दूसरा घटक हमेशा सम है, इसलिए हर गुणनफल सम होगा। कुल \(2\times 2=4\) युग्म हैं। / The second component is always even, so every product is even. There are \(2\times 2=4\) pairs in total.

Which concept should I revise for this Mathematics MCQ?

The second component is always even, so every product is even. There are \(2\times 2=4\) pairs in total.

What exam hint can help solve this Mathematics question?

दूसरा घटक हमेशा सम है, इसलिए हर गुणनफल सम होगा। कुल \(2\times 2=4\) युग्म हैं।