Question 337151
Let A be the amount of 30% OJ, B the amount of 5% OJ.
1.{{{A+B=25}}}
.
.
.
{{{30A+5B=23(25)}}}
2.{{{6A+B=115}}}
From eq.1,
{{{B=25-A}}}
Substitute into eq. 2,
{{{6A+(25-A)=115}}}
{{{5A=90}}}
{{{highlight(A=18)}}}
Then from eq. 1,
{{{18+B=25}}}
{{{highlight(B=7)}}}