Question 1064615
1.{{{M+B=36}}}
.
.
.
{{{B/(M+W)=3/5}}}
{{{5B=3(M+W)}}}
2.{{{5B=3M+3W}}}
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.
.
{{{M/W=3/2}}}
3.{{{2M=3W}}}
So then substituting 3 into 2,
{{{5B=3M+2M}}}
{{{5B=5M}}}
{{{B=M}}}
Them from 1,
{{{M+M=36}}}
{{{2M=36}}}
{{{M=18}}}
From 3,
{{{2(18)=3W}}}
{{{3W=36}}}
{{{W=12}}}