- A x B x C = 72
- There are twelve possible solutions.
- A + B + C = X
- There are two possible solutions. The second man knows his flight number, and cannot answer the question. Thus, as there are only two cases of the sum of the age of each of the three children giving the same result - 14 - this is both the flight number and the two possible age sets.
- One child is younger than the other two.
- There is one possible solution.
I assumed the ages had to be whole numbers, otherwise this is unsolvable.
I'll take sterling. Thanks.