Find the compound interest on $800 for 1year at 10% p.a. if CI is component yearly?	Choices
A) $40  B) $400  C) $840  D) $800  E) $80
$40 = P(1 + R/100)^T   = 800(1 + 10/100)^1   = 800*21/20= 
<gadget id="calculator">800*21/20</gadget>
<output>840</output>
$840   CI= $40-P = 840-800= 
<gadget id="calculator">840-800</gadget>
<output>40</output>
$40   $40nswer is $40
<result>A</result>
Find the compound interest on $800 for 1year at 10% p.a. if CI is component yearly?