यदि \(|A\times B|=24\), (|A|=4) और (|C|=7) हैं, तो \(|B\times C|\) का मान क्या होगा?
If \(|A\times B|=24\), (|A|=4), and (|C|=7), what is the value of \(|B\times C|\)?
Explanation opens after your attempt
C. (42)
Concept
Since \(|B|=\frac{24}{4}=6\), \(|B\times C|=6\cdot7=42\). First find the unknown cardinality.
Why this answer is correct
The correct answer is C. (42). Since \(|B|=\frac{24}{4}=6\), \(|B\times C|=6\cdot7=42\). First find the unknown cardinality.
Exam Tip
\(|B|=\frac{24}{4}=6\), इसलिए \(|B\times C|=6\cdot7=42\)। पहले अज्ञात समुच्चय की कार्डिनलिटी निकालें।
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