Find the simple interest on $500 for 3 years at 10% per annum?	Options:	A) $250	B) $300	C) $500	D) $150	E) $100
SI = PTR/100   = 500*3*10/100= 
<gadget id="calculator">500*3*10/100</gadget>
<output>150</output>
$150   Answer is $150
<result>D</result>
Find the simple interest on $500 for 3 years at 10% per annum?