Answer :
Priya mixes : 2 1/2 cups of water with 1/3 cup of orange juice concentrate.
Diego mixes 1 2/3 cups of water with 1/4 cup orange juice concentrate.
So, to get the same taste with 100 cups for each recipe,
let the number of cubs of orange = x
for Priya mixes:
[tex]\begin{gathered} 2\frac{1}{2}\colon\frac{1}{3}=100\colon x \\ \\ \frac{5}{2}\colon\frac{1}{3}=100\colon x \\ \end{gathered}[/tex]Solve for x:
[tex]\begin{gathered} \frac{\frac{5}{2}}{\frac{1}{3}}=\frac{100}{x} \\ \frac{5\cdot3}{2\cdot1}=\frac{100}{x} \\ \\ x=\frac{2\cdot100}{5\cdot3}=\frac{200}{15}=13\frac{1}{3} \end{gathered}[/tex]So, Priya will need 13 1/3 cubs of orange
And for Diego mix:
[tex]1\frac{2}{3}\colon\frac{1}{4}=100\colon x[/tex][tex]\begin{gathered} \frac{5}{3}\colon\frac{1}{4}=100\colon x \\ \end{gathered}[/tex]solve for x:
[tex]\begin{gathered} \frac{\frac{5}{3}}{\frac{1}{4}}=\frac{100}{x} \\ \\ \frac{5\cdot4}{1\cdot3}=\frac{100}{x} \\ \\ x=\frac{1\cdot3\cdot100}{5\cdot4}=\frac{300}{20}=15 \end{gathered}[/tex]So, Diego will need 15 cubs of orange