यदि \(U={1,2,\ldots,120}\), (A) (8) के गुणजों का और (B) (12) के गुणजों का समुच्चय है, तो (n(\(A\cup B\)')) का सही मान चुनें।
If \(U={1,2,\ldots,120}\), (A) is the set of multiples of (8) and (B) is the set of multiples of (12), choose the correct value of (n(\(A\cup B\)')).
Explanation opens after your attempt
A. (100)
Concept
(n\(A\cup B\)=15+10-5=20), so the complement is (120-20=100). First find the union and then subtract from (U).
Why this answer is correct
The correct answer is A. (100). (n\(A\cup B\)=15+10-5=20), so the complement is (120-20=100). First find the union and then subtract from (U).
Exam Tip
(n\(A\cup B\)=15+10-5=20), इसलिए पूरक (120-20=100) है। पहले संघ निकालें फिर (U) से घटाएँ।
Login to save your score, XP, coins and progress.
