Find the simple interest for Rs. 2000 at 8% p/a for 2years.  Choose the correct choice from the following options.
A) Rs.300  B) 3Rs.20  C) Rs.420  D) Rs.520  E) Rs.460
S.I= (2000*8*2)/100= 
<gadget id="calculator">(2000*8*2)/100</gadget>
<output>320</output>
320   Answer: 3Rs.20
<result>B</result>
Find the simple interest for Rs. 2000 at 8% p/a for 2years.