When x = 1 and y = 8, there are 9 people, 1 adult and 8 children, and the children are 8 times as many as adults;

When x = 2 and y = 6, there are 8 people, 2 people and 6 children, and the children are three times as many as adults;

When x = 3, y = 4, (irrelevant, omitted)

When x = 4 and y = 2, there are six people, three adults and two children. Adults are twice as many as children.

A: There are three situations: 9 people, 1 adult, 8 children, and children are 8 times as many as adults. Eight people, two in size, six in children, three times as many as adults; There are six people, three adults and two children. Adults are twice as many as children.