To mix a particular shade of purple paint red paint and blue paint are mixed in the ratio 5: 3 to make 20 gallons of this shade of purple paint how many gallons of red and blue paint should be used

Red paint: 12.5 gallons

Blue paint: 7.5 gallons

Step-by-step explanation:

5 + 3 = 8

20/8 = 2.5

5 * 2.5 = 12.5

3 * 2.5 = 7.5

Red paint: 12.5 gallons

Blue paint: 7.5 gallons

Red = 12.5 gallons, Blue = 7.5 gallons

Step-by-step explanation:

Red  :   Blue    = Purple

 5x   +    3x      =    20

        8x            =    20

      ÷8                   ÷8    

x = =

Red: 5x = 5 = = 12.5

Blue: 3x = 3 = = 7.5

the correct answer is c) 2.