A mother and her young son got into a bus in s small city and sat down.The bus condutor came to them for their tickets.The mother said,"I want one ticket to London."And gave her two pounds.
The conductor looked at the small boy for a few mins and then said to him."How old are you?"
The mother began speaking,but the conductor stopped her ,and the boy said,"I'm four years old at home ,and two and a half in buses and trains."
The mother took one pound out of her bag and gave it to the conductor.She gave her one and a half tickets.