Big Thanks to Bilbao for submitting!
Tom was recently sent to a new school. On the first day of his arrival the teacher asked him his age, and this was his curious reply:
‘Well, you see, it is like this. At the time I was born—I forget the year—my only sister, Ann, happened to be just one-quarter the age of mother, and she is now one-third the age of father.’
‘That’s all very well,’ said the teacher, ‘but what I want is not the age of your sister Ann, but your own age.’
‘I was just coming to that,’ Tom answered; ‘I am just a quarter of mother’s present age, and in four years’ time I shall be a quarter the age of father. Isn’t that funny?’.
This was all the information that the teacher could get out of Tom. From these facts, what was his precise age?