यदि \(U={1,2,\ldots,36}\), \(A={x:x \in U,2\mid x}\), \(B={x:x \in U,3\mid x}\), तो (n\(A'\cap B\)) क्या है?
If \(U={1,2,\ldots,36}\), \(A={x:x \in U,2\mid x}\), and \(B={x:x \in U,3\mid x}\), what is (n\(A'\cap B\))?
Explanation opens after your attempt
Correct Answer
A. (6)
Concept
\(A'\cap B\) means multiples of (3) that are not even. Up to (36), there are (12) multiples of (3), (6) of them are even, so (6) remain.
Why this answer is correct
The correct answer is A. (6). \(A'\cap B\) means multiples of (3) that are not even. Up to (36), there are (12) multiples of (3), (6) of them are even, so (6) remain.
Exam Tip
\(A'\cap B\) का अर्थ (3) के वे गुणज हैं जो सम नहीं हैं। (36) तक (3) के (12) गुणज हैं, उनमें (6) सम हैं, इसलिए (6) बचते हैं।
Login to save your score, XP, coins and progress.