alleryایک مقدار 20% گرتی ہے، پھر 20% بڑھ جاتی ہے۔ خالص تبدیلی؟
Aکوئی تبدیلی نہیں۔
B8% کمی
C4% اضافہ
D4% کمی
Answer & Solution
Correct answer: D. 4% کمی
یکے بعد دیگرے 0.8 اور 1.2 0.96، ایک 4% زوال دیتے ہیں۔
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