Question 371508
Let A be the amount of 2% solution, B the amount of 8% solution.
1.{{{A+B=2}}}
.
.
{{{2A+8B=6.8(2)}}}
2.{{{A+4B=6.8}}}
Subtract eq. 1 from eq. 2,
{{{A+4B-A-B=6.8-2}}}
{{{3B=4.8}}}
{{{highlight(B=1.6)}}}liters
From eq. 1,
{{{A+1.6=2}}}
{{{highlight(A=0.4)}}}liters