There are 14 girls, 11 boys, and their parents at a park. If they split into 3 equally sized playgroups, each group contains 25 people. How many parents were at the park? Let's think first. Chain of thought:
There are 3 groups * 25 people / group = 75 people in total. There are 14 girls + 11 boys = 25 children in total. There are 75 people - 25 children = 50 parents.
Therefore, the answer is 50.