50 parents were asked which activities they enrolled their infant in.
20 were enrolled in gymnastics.
8 were enrolled in music only.
20 were enrolled in swimming only.
9 were enrolled in gymnastics and swimming.
7 were enrolled in music and swimming.
6 were enrolled in gymnastics and music.

Respuesta :

Answer: gymnastics   35

               music       21

               swimming      36

Step-by-step explanation:

gymnastics   35=20+9+6

music   21=8+7+6

swimming   36=20+9+7