Answer:
4 : 2 : 5
Explanation:
To find the ratio of silver to brown to pink counters in simplest form, we need to divide the number of each type of counter by their greatest common factor.
The greatest common factor of 16, 8, and 20 is 4.
So, we divide each of the numbers by 4:
Silver counters: 16 ÷ 4 = 4
Brown counters: 8 ÷ 4 = 2
Pink counters: 20 ÷ 4 = 5
Therefore, the ratio of silver to brown to pink counters in simplest form is:
4 : 2 : 5
or
2 : 1 : 2.5 (if we prefer to express the ratio in decimal form)