This one I found pretty tough.
Latin: Cena nullius alterius ancillae est bona.
The answer key translation: “The dinner of neither of the maids is good”.
So I guess that nullius alterius translates into “neither”?
nullius = none, no - gen singular
alterius = the one, the other - gen singular
Putting them together = not the one or the other = neither?
If true, my translation would be: “The dinner of neither maidservant is good”.
Can someone explain this to me?