Question 835786
1.{{{K/M=3/4}}}
Two years ago,
{{{((K-2)+(M-2))/2=12}}}
{{{K+M-4=24}}}
2.{{{K+M=28}}}
Substitute from eq. 1,
{{{(3/4)M+M=28}}}
{{{(7/4)M=48}}}
{{{M=28(4/7)}}}
{{{M=16}}}
{{{K=(3/4)(16)=12}}}