## Find out the age of children

Since the sum of the ages must be equal to 13, we have 14 possibilities (excluding cases where any child is 0 years old, in which case the product would be 0, which is not Jarbas's age). Of these 14 possibilities, only 2 cases (1,6,6 and 2,2,9) in which the product gives the same result (36). Since Jarbas is missing data, he must necessarily be 36 years old.

So the answer is **(2,2,9)** for there is a greater son, according to the statement of the problem.

Back to statement