RBI Grade B Officers 2016 Sep shift 2 Paper

Shyam invests certain sums in schemes- A and B for two years each. Sum invested in scheme B is 20% more than that invested in scheme A. Scheme A of fers compound interest (compounded annually) at the rate of 20% per annum scheme B offers simple interest per annum. Respective ratio between the interests earned from scheme A and that earned from scheme B was 11: 9.
Quantity I : Rate of interest offered by scheme B.
II : Rate of interest offered by scheme C (simple interest per annum) when Rs. 1800 invested for 2 years earns an interest of Rs. 432.