Answer:
The Equivalent for the words in each sentence is:
the least boring = los menos aburridos.
the worst = los peores
the oldest = el más viejo
the youngest = la más jóven.
Explanation:
To understand personnal adjectives we need to understand also that in spanish are classified by sex and in plural and singular forms.
1.- First sentence says: Ricardo and tomas are "the least boring" boring is aburrido least los menos so they are los menos aburridos de la fiesta.
2.- Second sentece says: Miguel and antonio are the worst/ peores students estudiantes of the class de la clase.
3.- The third sentence says: My biology profesoris(male) Mi profesor de biología es the oldest of the university el más iejo de la universidad being the oldest más viejo.
4.- The fourth sentence says: She is ella es the youngest la más jóven of the group del grupo. Youngest being la más jóven.
