\(यदि (U={1,2,\ldots,30}), (A={x:x\) 2 से विभाज्य है\(}), (B={x:x\) 3 से विभाज्य है\(}), तो (|A'\cup B'|) कितना है\)?
\(If (U={1,2,\ldots,30}), (A={x:x\) is divisible by \(2}), (B={x:x\) is divisible by \(3}), what is (|A'\cup B'|)\)?
Explanation opens after your attempt
Correct Answer
C. (25)
Concept
(A'\cup B'=\(A\cap B\)'), and \(A\cap B\) has (5) multiples of (6). So the count is (30-5=25).
Why this answer is correct
The correct answer is C. (25). (A'\cup B'=\(A\cap B\)'), and \(A\cap B\) has (5) multiples of (6). So the count is (30-5=25).
Exam Tip
(A'\cup B'=\(A\cap B\)') और \(A\cap B\) में (6) के (5) गुणज हैं। इसलिए संख्या (30-5=25) है।
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