Answer:
There are 8 and 12 balloons for groups A and B, respectively.
Explanation:
The ratio 2 : 3 means that there are 2 balloons in group A for each 3 balloons in the group B. The amounts of balloons asigned to each groups are determined by the following formulas:
Group A
![n_(A) = (2)/(2+3)\cdot (20)](https://img.qammunity.org/2021/formulas/mathematics/high-school/lxan6adsnypcdwtoq6b44hhymtn5m8m1ue.png)
![n_(A) = 8](https://img.qammunity.org/2021/formulas/mathematics/high-school/qabql40sz17phvcks762lg1zlly47pynom.png)
Group B
![n_(B) = (3)/(2+3)\cdot (20)](https://img.qammunity.org/2021/formulas/mathematics/high-school/il6nj8a7udukbpk3iys31xskwxsq0agbn7.png)
There are 8 and 12 balloons for groups A and B, respectively.