यदि \(A=\{2,4,6\}\) और \(B=\{1,2,3,4\}\), तो \(A\times B\) में \(\frac{a}{b}\) पूर्णांक होने वाले युग्मों की संख्या कितनी है?
If \(A=\{2,4,6\}\) and \(B=\{1,2,3,4\}\), how many pairs in \(A\times B\) make \(\frac{a}{b}\) an integer?
Explanation opens after your attempt
Correct Answer
C. (8)
Concept
(b) must be a divisor of (a). For (a=2,4,6), the counts are (2,3,3), totaling (8).
Why this answer is correct
The correct answer is C. (8). (b) must be a divisor of (a). For (a=2,4,6), the counts are (2,3,3), totaling (8).
Exam Tip
(b) को (a) का भाजक होना चाहिए। (a=2,4,6) के लिए क्रमशः (2,3,3) मान मिलते हैं, कुल (8)।
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