Question 1154740
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<pre>

48000 = {{{27000*(1+r)^9}}}


{{{48000/27000}}} = {{{(1+r)^9}}}


1.777778 = {{{(1+r)^9}}}


Take log base 10 of both sides


log(1.77778) = {{{9*log((1+r))}}}


log(1+r) = {{{log((1.77778))/9}}} = 0.027764

1 + r = {{{10^0.027764}}} = 1.066

r = 1.066 - 1 = 0.066 = 6.6%.      <U>ANSWER</U>
</pre>

Solved.