In 10 years, Cornelia will be three times as old as Kilee. If Kilee is currently 20 years old, how old is Cornelia now?
In 10 years, Kilee will be 20 years + 10 years = 30 years.
In ten years, Cornelia will be 3 * 30 years = <<3*30=90>>90 years old.
Cornelia is currently 90 years - 10 years = <<90-10=80>>80 years old
#### 80