Matthew gave equal numbers of crackers and cakes to his 9 friends. If he had 27 crackers and 18 cakes initially How many cakes did each person eat?
1. Matthew gave out an equal number of crackers and cakes to his 9 friends. 
2. If he had 27 crackers and 18 cakes initially, then he would have given out 9 crackers and 9 cakes to each person. 
3. Therefore, each person would have eaten 9 crackers and 9 cakes.