Question 955652
{{{231165=20000*(1+r/2)^(30*2)}}}


{{{231165/20000=(1+r/2)^60}}}

{{{(1+r/2)^60=11.55825}}}


{{{log((1+r/2)^60)=log(11.55825)}}}

{{{60*log((1+r/2))=1.062892}}}

{{{log((1+r/2))=0.01771489}}}

{{{1+r/2=1.04163}}}

{{{r/2=0.04163}}}

{{{r=0.0833}}}
approximately 8.3 percent