$500 will become $1000 in 5 years find the rate of interest? Options
A) 10%	B) 20%	C) 25%	D) 30%	E) 50%
SI = simple interest = A-P = 1000-500= 
<gadget id="calculator">1000-500</gadget>
<output>500</output>
$500   R= 100SI/PT = 100*500/500*5 =20%   Answer is 20%
<result>B</result>
$500 will become $1000 in 5 years find the rate of interest?