Question 550813
{{{r=(1/5)f}}}
{{{r+6=(1/3)(f+6)}}}
{{{(1/5)f+6=(1/3)(f+6)}}}
{{{(1/5)f=(1/3)(f)+3-6}}}
{{{(1/5)f=(1/3)(f)-3}}}
{{{(3/15)f=(5/15)(f)-3}}}
{{{-(2/15)f=-3}}}
{{{(2/15)f=3}}}
{{{(15/2)(2/15)f=3(15/2)}}}
{{{f=45/2}}}
{{{f=22.5}}}
{{{r=(1/5)f}}}
{{{r=(1/5)(45/2)}}}
{{{r=45/10}}}
{{{r=4.5}}}
R=4.5 years old
F=22.5 years old