Question 714898
The values involved and the simplicity of the situation allow intuitively to see 10 FLUID ounces of juice in the Ade.  


You want some variables and an equation?
Ratio of juice to Ade by volume is 8:32, or {{{8/32=1/4}}}.  Given 40 FLUID OUNCES of Ade, how much actual orange juice is present?


{{{1/4=v/40}}}
{{{(1/4)*40=(v/40)*40}}}
{{{10=v}}}