Sunday Times Teaser 2794 – D-day
by Graham Smithers
I have a number with D digits in which the last but one digit (the 10’s digit) is also D. While preseving the other digits in order, I then move this last but one digit to the left to become the first digit in a new D digit number. This turns out to be D times my number.
What is my number?
Comments are closed.