allery72 ਦੇ ਨਿਯਮ ਅਨੁਸਾਰ, 18% ਵਿਆਜ 'ਤੇ ਦੁੱਗਣਾ ਕਰਨ ਲਈ ਕਿੰਨੀ ਦੇਰ ਹੈ?
A4 ਸਾਲ
B5 ਸਾਲ
C3 ਸਾਲ
D6 ਸਾਲ
Answer & Solution
Correct answer: A. 4 ਸਾਲ
72 / 18 = 4 ਸਾਲ।
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