Which one of these grids is shaded red and blue in the ratio 0.5:1?
А.
B
C
D
E
Fחד

Answer:
C
Step-by-step explanation:
0.5 red : 1 blue
1 red : 2 blue
1.5 red : 3 blue
2 red : 4 blues
2.5 red : 5 blue
3 red : 6 blue
3.5 red : 7 blue
4 red : 8 blue
(per every half a red, there is one whole blue)
C has 4 red and 8 blue
0.5 red x 8 blue = 4 red
1 blue x 8 blue = 8 blue