railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Interest Simple Interest
A sum of money becomes \(\frac{7}{5}\) times of itself in 4 years at certain rate of simple interest. What is the rate of simple interest per annum?
1
8%
2
15%
3
10%
4
12%