alleryایک قصبے میں 60 فیصد لوگ اخبار X، 40 فیصد اخبار Y اور 20 فیصد دونوں پڑھتے ہیں۔ کتنے فیصد لوگ نہ X پڑھتے ہیں نہ Y؟
A10
B20
C15
D25
Answer & Solution
Correct answer: B. 20
کم از کم ایک اخبار پڑھنے والے = 60 + 40 - 20 = 80 فیصد۔ اس لیے کوئی اخبار نہ پڑھنے والے 20 فیصد ہیں۔
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