यदि \(A=\{1,2,3,4\}\) और \(B=\{1,2,3\}\), तो \(A\times B\) में \(a+b\le5\) वाले युग्मों की संख्या कितनी है?

If \(A=\{1,2,3,4\}\) and \(B=\{1,2,3\}\), how many pairs in \(A\times B\) satisfy \(a+b\le5\)?

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Correct Answer

C. (9)

Step 1

Concept

For (a=1,2,3,4), the choices of (b) are (3,3,2,1). Total is (9).

Step 2

Why this answer is correct

The correct answer is C. (9). For (a=1,2,3,4), the choices of (b) are (3,3,2,1). Total is (9).

Step 3

Exam Tip

(a=1,2,3,4) पर (b) के विकल्प क्रमशः (3,3,2,1) हैं। कुल (9) है।

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यदि \(A=\{1,2,3,4\}\) और \(B=\{1,2,3\}\), तो \(A\times B\) में \(a+b\le5\) वाले युग्मों की संख्या कितनी है? / If \(A=\{1,2,3,4\}\) and \(B=\{1,2,3\}\), how many pairs in \(A\times B\) satisfy \(a+b\le5\)?

Correct Answer: C. (9). Explanation: (a=1,2,3,4) पर (b) के विकल्प क्रमशः (3,3,2,1) हैं। कुल (9) है। / For (a=1,2,3,4), the choices of (b) are (3,3,2,1). Total is (9).

Which concept should I revise for this Mathematics MCQ?

For (a=1,2,3,4), the choices of (b) are (3,3,2,1). Total is (9).

What exam hint can help solve this Mathematics question?

(a=1,2,3,4) पर (b) के विकल्प क्रमशः (3,3,2,1) हैं। कुल (9) है।