Find the simple interest on $1000 for 3 years at 10% per annum? Choose the most appropriate option:
A) $250 B) $300 C) $500 D) $600 E) $1000
SI = PTR/100   = 1000*3*10/100= 
<gadget id="calculator">1000*3*10/100</gadget>
<output>300</output>
$300   Answer is $300
<result>B</result>
Find the simple interest on $1000 for 3 years at 10% per annum?