alleryدو سیٹوں کے اتحاد میں 30 اراکین ہوتے ہیں۔ ایک سیٹ میں 20 اور دوسرے میں 18 ہے۔ وہ کتنے شیئر کرتے ہیں؟
A12
B10
C8
D6
Answer & Solution
Correct answer: C. 8
اوورلیپ = 20 + 18 - 30 = 8 اراکین کو دو بار شمار کیا گیا۔
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