Question 87
Today it's Marko's birthday. His father and grandfather have this conversation:
– Now Marko's, your and my age are all prime numbers!
– Yes, and five years from now all the three ages will be perfect squares.
How old was his grandfather when Marko was born?
– Now Marko's, your and my age are all prime numbers!
– Yes, and five years from now all the three ages will be perfect squares.
How old was his grandfather when Marko was born?