The difference between compound interest (compounded annually) and simple interest on a sum of Rs. 1000 at a certain rate of interest for 2 years is Rs. 10. The rate of interest per annum is:

Options

A. if the data in Statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer to question.
B. if the data in statement Ii alone are sufficient to answer the questin, while the data in statemetn I alone are not suffcient to answer the question.
C. if data either in statement I alone or in statement II alone are sufficient to answer the question.
D. if the data in both the statements I and II together are necessary to answer the question.

Explanation

`implies(5xxx15xx2)/(100){3x(1+(20)/(100))^(2)-3x}-900`
`implies(3x)/(2)-{3x xx(36)/(25)-3x}=900`
`=(3x)/(2)-{(108x-75x)/(25)}=900`
`implies(75x-66x)/(50)=900implies9x=900xx50`
`impliesthereforexRs.5000`
Amount invested in scheme
`A=3xx5000=15000`