Problem #PRU-88008

Problemas Matemáticas discretas Teoría de algoritmos Teoría de algoritmos (otros)

Problem

In an apartment building in which there are only married couples with children, a population census was carried out. The person who conducted the census stated in the report: “There are more adults in the building than children. Each boy has a sister and there are more boys than girls. There are no childless families.” This report was incorrect. Why?