Given:
• Ratio of adults to children = 12 : 3
,
• Total number of people = 90
Let's find the number of children in the park.
To find the number of children, apply the formula:
Where:
Ratio of children = 3
Total ratio = 12 + 3 = 15
Thus, we have:
Therefore, the number of children in the park is 18 .
ANSWER:
18