Could you please explain the question below?

In the Logan family, each daughterhas the same number of sisters as she has brothers. The daughters, incidentally, are all older than the sons. How many sons and how many daughters in the Logan family?

Thank you.

More information is needed. As long as there are N girls and N-1 boys, and all of the girls were born before the boys, N could be any number 1 or greater.

Did you leave out some additional information?