The document presents two ratio problems: 1) One involving sharing 4 pizzas among 10 people at a large table and 3 pizzas among 8 people at a small table. If the tables were combined, the ratio of pizza to people would be 7 pizzas to 18 people. 2) One involving coffee mixture A with a 2:3 milk to coffee ratio and mixture B with a 3:4 milk to coffee ratio. If the mixtures were combined, the ratio of milk to coffee would be 5:7.