A department store paint mixer contains 4 pints of equal amounts of yellow and red paint. The shade of red that you want requires a paint mixture that is 75% red and 25% yellow. How many pints of red paint need to be added to the paint mixer?

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Mathematics

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8 September, 17:25

A department store paint mixer contains 4 pints of equal amounts of yellow and red paint. The shade of red that you want requires a paint mixture that is 75% red and 25% yellow. How many pints of red paint need to be added to the paint mixer?

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Marely · Answer 1

8 pints

Step-by-step explanation:

The ratio of red to yellow needs to be ...

red : yellow = 75% : 25% = 3 : 1 = 12 : 4

For the 4 pins of yellow paint in the mixer, a total of 12 pints of red paint are needed. There are already 4 pints in the mixer, so ...

8 pints of red paint need to be added.