Sam invested $1000 @20% per annum for one year. If the interest is compounded half yearly, then the amount received by Sam at the end of the year will be?  Pick.
A) $1542
B) $1145
C) $1210
D) $1642
E) $1020
P = $1000   R = 20%   p.a. = 10%   T = 2 half years   Amount = 1000 * (1 + 10/100)^2 = 1000* 11/10 * 11/10= 
<gadget id="calculator">1000* 11/10 * 11/10</gadget>
<output>1_210</output>
$1210   Answer is $1210
<result>C</result>
Sam invested $1000 @20% per annum for one year. If the interest is compounded half yearly, then the amount received by Sam at the end of the year will be?