allery60 امیدواروں کے امتحان میں، 40 نے 1، 35 پیپر 2، اور 25 دونوں کو پاس کیا۔ صرف 2 کتنے پاس ہوئے؟
A5
B8
C10
D15
Answer & Solution
Correct answer: C. 10
صرف کاغذ 2 = n(P2) - n(P1 ∩ P2) = 35 - 25 = 10۔
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