railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Interest Simple Interest
If the annual rate of simple interest increases from 11% to \(17 \frac 1 2\%\), a person's yearly income increases by Rs. 1,071.20. The principal amount invested (in Rs.) is:
1
16,480
2
19,120
3
17,250
4
10,710