$500 will become $1000 in 3 years find the rate of interest?	Choose the correct option.
A) A)10%
B) B)20%
C) C)25%
D) D)33.33%
E) E)50%
SI = simple interest = A-P = 1000-500 = $300   R = 100SI/PT = 100*500/500*3 =33.33%   Answer is 33.33%
<result>D</result>
$500 will become $1000 in 3 years find the rate of interest?