Question 256793
Concentration equation
{{{20A+100B=75(2)=150}}}
Volume equation
{{{A+B=2}}}
.
.
.
{{{A=2-B}}}
{{{20(2-B)+100B=150}}}
{{{40-20B+100B=150}}}
{{{80B=110}}}
{{{B=11/8}}}
{{{A=2-B=16/8-11/8=5/8}}}
5/8 liter of 20% solution and 11/8 of 100% solution.