\(यदि (U={1,2,\ldots,30}), (A={x:x\) 2 या 3 से विभाज्य है}), तो (A') में कितने अवयव हैं?
\(If (U={1,2,\ldots,30}), (A={x:x\) is divisible by 2 or 3}), how many elements are in (A')?
Explanation opens after your attempt
C. (10)
Concept
Numbers divisible by (2) or (3) are (15+10-5=20). Therefore the complement contains (30-20=10) numbers.
Why this answer is correct
The correct answer is C. (10). Numbers divisible by (2) or (3) are (15+10-5=20). Therefore the complement contains (30-20=10) numbers.
Exam Tip
(2) या (3) से विभाज्य संख्याएँ (15+10-5=20) हैं। इसलिए पूरक में (30-20=10) संख्याएँ हैं।
Login to save your score, XP, coins and progress.
