\(यदि (U={1,2,\ldots,144}) और (A={x:x\) 12 से विभाज्य नहीं है}), तो (|A'|) कितना है?
\(If (U={1,2,\ldots,144}) and (A={x:x\) is not divisible by 12}), what is (|A'|)?
Explanation opens after your attempt
Correct Answer
C. (12)
Concept
(A') is the set of numbers divisible by (12). Up to (144), there are \(\frac{144}{12}=12\) multiples of (12).
Why this answer is correct
The correct answer is C. (12). (A') is the set of numbers divisible by (12). Up to (144), there are \(\frac{144}{12}=12\) multiples of (12).
Exam Tip
(A') वे संख्याएँ हैं जो (12) से विभाज्य हैं। (144) तक (12) के \(\frac{144}{12}=12\) गुणज हैं।
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