A sum of money invested for a certain number of years at 8% p.a. simple interest grows to Rs.180. The same sum of money invested for the same number of years at 4% p.a. simple interest grows to Rs.120 only. For how many years was the sum invested?

Submitted by: Administrator
1. 25 years
2. 40 years
3. 33 years and 4 months
4. Cannot be determined

Ans : A
Submitted by: Administrator

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