prompt: Mike is 16 years old. His sister Barbara is half as old as he is. How old is Barbara going to be when Mike is 24 years old?
messages.content: Mike is 16 years old. His sister Barbara is half as old as he is. How old is Barbara going to be when Mike is 24 years old?
messages.role: user
messages.content: Barbara is currently 16 years / 2 = <<16/2=8>>8 years old.
  Mike is going to be 24 years old after 24 years - 16 years = <<24-16=8>>8 years.
  So Barbara is going to be 8 years + 8 years = <<8+8=16>>16 years old.
  #### 16
messages.role: assistant