railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Interest Simple Interest
Rs. 6,000 is invested at 10% p.a. on simple interest. If that interest is added to the principal after every 20 years, the amount will become Rs. 28,000 after :-
1
20 years
2
25 years
3
25.55 years
4
30 years