Question

A certain paint is to be mixed with 3 parts yellow to 2 parts blue. Twelve gallons of mixed paint are needed. How many gallons of blue must be used

Answer 1

Answer:

$Blue = 4.8 \ Gallons$

Step-by-step explanation:

Given

$Y : B = 3 ; 2$

Required

Find the  number of blue paints in 12 gallons

Start by representing the blue part of the ratio as a fraction

$Y : B = 3 ; 2$

$B = \frac{2}{2 + 3}$

$B = \frac{2}{5}$

This means that:

$Blue = \frac{2}{5} * 12\ Gallons$

$Blue = \frac{24}{5} \ Gallons$

$Blue = 4.8 \ Gallons$