allery100 افراد میں 30 صرف مجموعہ P میں، 25 صرف مجموعہ Q میں اور 20 دونوں میں ہیں۔ کتنے افراد نہ P میں ہیں نہ Q میں؟
A45
B35
C25
D15
Answer & Solution
Correct answer: C. 25
حلقوں کے اندر: 30 + 25 + 20 = 75، تو 100 - 75 = 25 باہر پڑے ہیں۔
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