Question 1124590
{{{highlight_green(highlight_green((1.75*18+100x)/(x+1.75)=60))}}}

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{{{1.75*18+100x=60(x+1.75)}}}

{{{100x+1.75*18=60x+60*1.75}}}

{{{40x=60*1.75-18*1.75}}}

{{{40x=42*1.75}}}

{{{x=(42*1.75)/40}}}

{{{highlight(x=1.8375)}}}{{{liters}}}{{{pure}}}{{{alcohol}}}

Best to call it 1.84 L according to the number values given.