\(यदि (A={x:x\) का गुणज 4 है\(, 1\le x\le 25}) और (B={x:x\) का गुणज 6 है\(, 1\le x\le 25}), तो (A\cup B) में कितने अवयव हैं\)?
\(If (A={x:x\) is a multiple of \(4, 1\le x\le 25}) and (B={x:x\) is a multiple of \(6, 1\le x\le 25}), how many elements are in (A\cup B)\)?
Explanation opens after your attempt
B. (9)
Concept
\(A=\{4,8,12,16,20,24\}\) and \(B=\{6,12,18,24\}\). The union has (9) distinct elements.
Why this answer is correct
The correct answer is B. (9). \(A=\{4,8,12,16,20,24\}\) and \(B=\{6,12,18,24\}\). The union has (9) distinct elements.
Exam Tip
\(A=\{4,8,12,16,20,24\}\) और \(B=\{6,12,18,24\}\) है। संघ में (9) अलग अवयव हैं।
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