✅ Перевірена відповідь на це питання доступна нижче. Наші рішення, перевірені спільнотою, допомагають краще зрозуміти матеріал.
A, B and C are three brothers, A being the eldest and C the youngest. The brothers are married, and they each have two sons. B’s twin sons, F and G are born first. A’s sons, D and E, are born a year apart and are younger than B’s sons. C’s sons are born , H and I are born last. Which sons will hold the higher rank?