Rodrick mixes a martini that has a volume of 'n' ounces having 40% Vermouth and 60% Gin by volume. He wants to change it so that the martini is 25% Vermouth by volume. How many ounces of Gin must he add?
Choose the correct choice from the following options
A) n/6 B) n/3 C) 3n/5 D) 5n/6 E) 8n/5
Note that after we add pure Gin, the volume of Vermouth will remain the same. Based on this set the equation:   0.4n=0.25(n+g) --&gt; g=3n/5   Answer: 3n/5.
<result>C</result>
Rodrick mixes a martini that has a volume of 'n' ounces having 40% Vermouth and 60% Gin by volume. He wants to change it so that the martini is 25% Vermouth by volume. How many ounces of Gin must he add?