यदि (A), (B) और (C) परस्पर असंबद्ध हैं, (n(A)=27), (n(B)=34), (n(C)=41) और (n(U)=125) है, तो (n(\(A\cup B\cup C\)')) कितना है?
If (A), (B) and (C) are mutually disjoint, (n(A)=27), (n(B)=34), (n(C)=41) and (n(U)=125), then what is (n(\(A\cup B\cup C\)'))?
Explanation opens after your attempt
A. (23)
Concept
For mutually disjoint sets, the union is (27+34+41=102), so the complement is (125-102=23). No common part needs to be subtracted.
Why this answer is correct
The correct answer is A. (23). For mutually disjoint sets, the union is (27+34+41=102), so the complement is (125-102=23). No common part needs to be subtracted.
Exam Tip
परस्पर असंबद्ध होने पर संघ (27+34+41=102) है, इसलिए पूरक (125-102=23) है। साझा भाग घटाने की जरूरत नहीं होती।
Login to save your score, XP, coins and progress.
