QUESTION
यदि n(A)=6 और n(B)=4 तथा A और B disjoint हैं तो n(A ∪ B) कितना होगा?
If n(A)=6 and n(B)=4 and A and B are disjoint then what is n(A ∪ B)?
CORRECT ANSWER
C
10 / 10
EXPLANATION INSIDE
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Step 1: Disjoint sets में common element नहीं होता। Step 2: इसलिए n(A ∪ B)=6+4=10। Step 3: Disjoint word दिखे तो intersection zero मानें।