Answer:5:7
Explanation:
From the given graph it is clear that
The total number of circles = 12
The total number of patterned circles = 5
The total number of plain circles = 7
We need to find the ratio of patterned circles to plain circles.
Substitute patterned circles = 5 and plain circles = 7 in the above formula.
Therefore, the ratio of patterned circles to plain circles is 5:7.