at deluxe paint store , fuchsia paint is made by mixing 5 parts of red paint with 3 parts of blue paint . mauve paint is made by mixing 3 parts of red paint with 6 parts blue paint . how many liters of blue paint must be added to 16 liters of fuchsia to change it to mauve paint ?
"in 16 liters , red = 5 / 8 * 16 = 10 and blue = 6 so , 10 / ( 6 + x ) = 3 / 6 or , x = 14 ( answer c )"
subtract(multiply(divide(multiply(16, divide(5, add(5, 3))), divide(3, add(5, 3))), divide(6, add(5, 3))), subtract(16, multiply(16, divide(5, add(5, 3)))))