The bananas in Philip's collection are organized into w groups. If there are a total of x bananas in Philip's banana collection How big is each group?
First, we need to find out how many bananas are in each group. We know that there are w groups, and we know that there are a total of x bananas in Philip's banana collection. This means that there must be x/w bananas in each group. 

Therefore, the answer (symbolic expression) is: 

x/w