Question 125179
{{{C(x)=1.5x/(100-x)}}}
{{{C(60) = 1.5*60 / (100-60)}}}
{{{C(60) = 90 / 40}}}
{{{C(60) = 2.25}}} million
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{{{C(x)=1.5x/(100-x)}}}
{{{5 = 1.5x / (100 - x)}}}
{{{500 - 5x = 1.5x}}}
{{{6.5x = 500}}}
{{{x = 77}}}%