alleryاگر سیٹ A میں 18 اراکین ہیں، سیٹ B میں 12 اور A اور B میں 5 کا حصہ ہے، یونین میں کتنے اراکین ہیں؟
A20
B25
C35
D30
Answer & Solution
Correct answer: B. 25
یونین = 18 + 12 - 5 = 25، کیونکہ مشترکہ اراکین کو صرف ایک بار شمار کیا جانا چاہیے۔
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