यदि \(A=\{m,n,o\}\) और \(B=\{7,8\}\) हैं, तो \(A\times B\) के सभी युग्मों में दूसरा घटक (8) कितनी बार आएगा?

If \(A=\{m,n,o\}\) and \(B=\{7,8\}\), how many times will the second component (8) appear in \(A\times B\)?

Explanation opens after your attempt
Correct Answer

A. (3)

Step 1

Concept

The element \(8\in B\) pairs with all (3) elements of (A). Therefore the second component (8) appears (3) times.

Step 2

Why this answer is correct

The correct answer is A. (3). The element \(8\in B\) pairs with all (3) elements of (A). Therefore the second component (8) appears (3) times.

Step 3

Exam Tip

\(8\in B\) के साथ (A) के सभी (3) अवयव जुड़ेंगे। इसलिए दूसरा घटक (8) कुल (3) बार आएगा।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{m,n,o\}\) और \(B=\{7,8\}\) हैं, तो \(A\times B\) के सभी युग्मों में दूसरा घटक (8) कितनी बार आएगा? / If \(A=\{m,n,o\}\) and \(B=\{7,8\}\), how many times will the second component (8) appear in \(A\times B\)?

Correct Answer: A. (3). Explanation: \(8\in B\) के साथ (A) के सभी (3) अवयव जुड़ेंगे। इसलिए दूसरा घटक (8) कुल (3) बार आएगा। / The element \(8\in B\) pairs with all (3) elements of (A). Therefore the second component (8) appears (3) times.

Which concept should I revise for this Mathematics MCQ?

The element \(8\in B\) pairs with all (3) elements of (A). Therefore the second component (8) appears (3) times.

What exam hint can help solve this Mathematics question?

\(8\in B\) के साथ (A) के सभी (3) अवयव जुड़ेंगे। इसलिए दूसरा घटक (8) कुल (3) बार आएगा।