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Father and son birthday

Father and son birthday

Andrés, who is a very observant child, has noticed that when he turns 14, his father will turn 41, that is, the same number but with the figures reversed.

If Andres and his father lived a hundred years each, Could you say how many times this coincidence will occur again throughout your life?

Solution

It will happen five more times: When the father is 52 years old the son will be 25, at the age of 63 of his father, Andrés will be 36, when his father turns 74 Andrés will be 47, when his father turns 85, he will be 58 and finally, when his father turns 96 he will have 69.