यदि (n\(A\cup B\)=48), (n(A-B)=20) और (n(B-A)=13) है, तो (n\(A\cap B\)) कितना होगा?
If (n\(A\cup B\)=48), (n(A-B)=20), and (n(B-A)=13), what is (n\(A\cap B\))?
Explanation opens after your attempt
A. (15)
Concept
The union has three separate parts, so the common part is (48-20-13=15). Combining separate regions is the main rule of Venn diagrams.
Why this answer is correct
The correct answer is A. (15). The union has three separate parts, so the common part is (48-20-13=15). Combining separate regions is the main rule of Venn diagrams.
Exam Tip
संघ के तीन अलग भाग हैं, इसलिए साझा भाग (48-20-13=15) होगा। अलग-अलग क्षेत्रों को मिलाना वेन आरेख का मुख्य नियम है।
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