The age of Mamma must have been 29 years 2 months; that of Papa, 35
years; and that of the child, Tommy, 5 years 10 months. Added together,
these make seventy years. The father is six times the age of the son,
and, after 23 years 4 months have elapsed, their united ages will amount
to 140 years, and Tommy will be just half the age of his father.