The grid among the answer choices which is shaded 1 : 1/3 is; Choice A.
Which Grid is shaded red and blue in the ratio 1 : 1/3 ?
It follows from the task content that the ratio of red to blue in each grid is as follows;
- Choice A; 9 : 3 = 1 :1/3
- Choice B; 8 : 4 = 1 : 1/2
- Choice C; 7 : 5
- Choice D; 10 : 2 = 5: 1
- Choice E; 3: 9 = 1: 3
- Choice F; 6:6 = 1 : 1
On this note, it therefore follows that the grid with the required ratio is Choice A.
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