\(यदि (U={1,2,3,\ldots,18}) और (A={x:x\) 2 और 5 दोनों से विभाज्य है\(}), तो (A^c) क्या होगा\)?
\(If (U={1,2,3,\ldots,18}) and (A={x:x\) is divisible by both 2 and \(5}), what is (A^c)\)?
Explanation opens after your attempt
Correct Answer
A. ({1,2,3,4,5,6,7,8,9,11,12,13,14,15,16,17,18})
Concept
Divisible by both means divisible by (10). From (1) to (18), only (10) satisfies this, so all others are in \(A^c\).
Why this answer is correct
The correct answer is A. ({1,2,3,4,5,6,7,8,9,11,12,13,14,15,16,17,18}). Divisible by both means divisible by (10). From (1) to (18), only (10) satisfies this, so all others are in \(A^c\).
Exam Tip
दोनों से विभाज्य होने का अर्थ (10) से विभाज्य होना है। (1) से (18) तक केवल (10) ऐसा है, इसलिए बाकी सभी \(A^c\) में हैं।
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