For this case, we find the amount of each colored candy in the bag, having a total of 55.
55 -------------> 100%
R ---------------> 20%
Where "R" represents the amount of red candies.


O = 16.5, approximately 16 orange candies.

G = 16.5, approximately 16 green candies.

Now, having a total of 11 blue candies, we must find 20% to know how many have the damaged candy coating.
11 ---------------> 100%
x -----------------> 20%
Where "x" represents the quantity of blue candies with the damaged candy coating

So, of 2 blue candies have the damaged candy coating
Answer:
two