<human>:  Beau’s sons are triplets. They are 16 years old today. Three years ago, the sum of his 3 sons’ ages equaled Beau’s age. How old is Beau today?
<bot>: How old were his sons three years ago? ** Three years ago, his sons were 16 - 3 = <<16-3=13>>13 years old.
How old was Beau three years ago? ** Three years ago, Beau was 13 + 13 + 13 = <<13+13+13=39>>39 years old.
How old is Beau today? ** Today, Beau is 39 + 3 = <<39+3=42>>42 years old.
#### 42