allery72 کے اصول کے مطابق، ایک سرمایہ کاری 9% سود پر تقریباً دوگنا ہو جاتی ہے؟
A9 سال
B8 سال
C6 سال
D7 سال
Answer & Solution
Correct answer: B. 8 سال
72 / 9 = 8 سال۔
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