Question 753995
(total silver iodide)/(amount of solution)=(concentration of silver iodide)


let v = liters of the 10% silver iodide solution to use


{{{(10v+4*3)/(v+3)=6}}}
Divide both sides by 2
{{{(5v+2*3)/(v+3)=3}}}
{{{5v+6=3(v+3)}}}
{{{5v+6=3v+9}}}
{{{2v=9-3}}}
{{{2v=6}}}
{{{v=3}}} liters