An apartment building has eight floors with one apartment on each floor. Seven families the Abrams, the Bakers, the Cabots, the DelLeons, the Elgars, the Fertittas and the Grants occupy each of the apartments, with one apartment vacant.
The number of floors between the Abrams and the Bakers is exactly the same as the number of floors between the Cabots and Deleons.
The Elgars are on a floor imeediately adjacent to the Fertittas.
The apartment on the bottom, the first floor is occupied.
The Grants live on a lower floor than the Elgars.