Answer:
a) 1 quart
b) 2 quarts
c) 33.33 % of the brown paint is made of blue paint
Step-by-step explanation:
6 quarts brown paint = 1/2 of yellow paint and 1/2 violet paint
violet paint = 1/3 red paint 2/3 blue paint
then
6 quarts brown paint = 1/2 of yellow paint and 1/2 (1/3 red paint and 2/3 blue paint)
or
6 quarts brown paint = 1/2 of yellow paint , (1/2*1/3) red paint and (1/2*2/3) blue paint
6 quarts brown paint = 1/2 of yellow paint , 1/6 red paint and 1/3 blue paint
then
a) he uses 1/6 of 6 quarts to make red paint = 1/6*6 = 1 quart
b) he uses 1/3 of 6 quarts to make red paint = 1/3*6 = 2 quarts
c) brown paint is made with 1/3 of blue paint = 33.33 % of the brown paint is made of blue paint