Question 1106184
x Liters of the 80% material


{{{30(200-x)+80x=62*200}}}


-


{{{3(200-x)+8x=62*20}}}

{{{600-3x+8x=62*20}}}

{{{5x=62*20-600}}}

{{{x=62*4-120}}}

{{{highlight(x=128*Liters)}}}--------of the 80% material

{{{highlight(72*liters)}}}---------of the 30% material