state gov DSSSB Warder, Assistant Superintendent, Matron Mock Test 2024 Quantitative Aptitude Interest Simple and Compound Both
A person lent out a certain sum on simple interest and the same sum on compound interest at a certain rate of interest per annum. If the ratio between the difference of compound interest and simple interest of 2 years and that of 3 years is 20 : 63, then what is the rate of interest per annum?
1
9%
2
15%
3
10%
4
12%