state gov TNPSC Group 4 (தமிழ்நாடு குழு IV) Mock Test 2025 Quantitative Aptitude Interest Compound Interest
The interest on a sum of Rs.1,225 for two years is Rs.144 when the interest is compounded annually at a certain interest rate. Find the annual interest rate.
1
5\(\frac{2}{7}\)%
2
5\(\frac{4}{7}\)%
3
6\(\frac{2}{7}\)%
4
5\(\frac{5}{7}\)%