How much more would Rs.20000 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 answers:
A) 278 B) 370 C) 237 D) 482 E) 223
20000(11/10)4 - 20000(6/5)2   = 482   Answer:482
<result>D</result>
How much more would Rs.20000 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?