Find the sum The difference between the compound and S.I. on a certain sum of money for 2 years at 10% per annum is Rs.18 of money? Choose the correct choice from the following answers.
A) 1800  B) 1992  C) 9921  D) 2798  E) 2789

Rationale: "p = 18 ( 100 / 10 ) 2 = > p = 1800 answer : a"
Answer: A