Answer: 24 for red, 40 for blue and 64 for white.
Step-by-step explanation:
To get the shade of purple paint ordered by a client, the colours mixed are red, blue and white in the ratio 3:5:8.
Red= 3
Blue= 5
White= 8
Total = 3+5+8 = 16
Since 128fluid make a gallon, the number of fluids ounces for each colour will be:
Red = 3/16 × 128
= 24
Blue= 5/16 × 128
= 40
White = 8/16 × 128
= 64
The fluid ounces of colours needed are 24 for red, 40 for blue and 64 for white.