question: Mia and Emma are currently 16 years apart in age. If Mia, who is younger than Emma, is 40 years old, what's the average of their ages?
answer: If Mia is 40 years old, Emma is 40+16 = <<40+16=56>>56 years old.
  The sum of their ages is 56+40 = <<56+40=96>>96 years
  The average age of the two is 96/2 = <<96/2=48>>48 years
  #### 48