BANK IBPS RRB PO Mock Test Series 2025 (Pre + Mains) Quantitative Aptitude Interest Compound Interest
A sum becomes 8 times of itself in 4 years at compound interest (interest is compounded annually). In how many years will the sum becomes 64 times of itself.
1
5 years
2
6 years
3
7 years
4
8 years
5
None of the above/More than one of the above.