How much more would Rs.10000 fetch, after two years, if it is put at 20% p.a. compound interest payable half yearly than if is put at 20% p.a. compound interest payable yearly?  Choose the correct choice from the following options
A) 241  B) 725  C) 992  D) 837  E) 923

Rationale: "10000 ( 11 / 10 ) 4 - 10000 ( 6 / 5 ) 2 = 241 answer : a"
Answer: A