Stage: 3 Challenge Level:
Experiment with different combinations of paints A and B (and
paints C and D).
The ratio $1:4 = 2:8 = 3:12 =
The ratio $1:5 = 2:10 = 3:15 =
B is whiter than A (and D is whiter than C), so what will be
special about the combinations that achieve the paler shades of
What is the relationship between the ratios of the original paints
and the ratio of the mix?