Asked by ernest
Lizeth noticed that her grandparents’ birth dates have
an unusual property. Her grandmother was born 5-
31-36, and her grandfather was born 9-25-34.
Furthermore, her great-grandfather 7-17-14. How
many birth dates in a century have this property, in
which the sum of the month and the day equal the
value of the last two digits of the birth year?
an unusual property. Her grandmother was born 5-
31-36, and her grandfather was born 9-25-34.
Furthermore, her great-grandfather 7-17-14. How
many birth dates in a century have this property, in
which the sum of the month and the day equal the
value of the last two digits of the birth year?