A businessman sends a fax to his wife

“To My Dear Wife,
You will surely understand that I have certain needs that you with your
54 years can no longer supply. I am of course very happy with you and
value you as a good wife. Therefore after reading this fax, I hope that you
will not wrongly interpret the fact that I will be spending the evening with
my 18 year old secretary at the Comfort Inn Hotel. Please don’t be perturbed,
I shall be back home before midnight.”
When the man came home, he found the following letter on the dining roomtable.
My dear husband, I received your fax, and thank you for your honesty.
I would like to take this opportunity to remind you that you are also 54
years old. At the same time I would like to inform you that while you read
this, I will be at the Hotel Fiesta with Michael my tennis coach, who like
your secretary is also 18 years old. As a successful businessman and with
your excellent knowledge of Maths, you will understand that we are in the
same situation, although with one small difference. 18 goes into 54 more
often than 54 goes into 18. Therefore I will not be back before lunchtime
tomorrow.”