400
Name 5 Ravenclaws, 5 Gryffindors, 5 Hufflepuffs, and 5 Slytherins who attended Hogwarts during the Golden Trio's time. (Don't have to name last names)
Ravenclaw: Luna, Cho, Michael, Terry, Anthony, Padma, Penelope, etc
Gryffindor: Harry, Ron, Hermione, Neville, Ginny, Fred, George, etc
Hufflepuff: Ernie, Zacharias, Susan, Hannah, Cedric, etc.
Slytherin: Draco, Pansy, Gregory (better known as Goyle), Vincent (better known as Crabbe), Blaise, etc