THE PUZZLET PAGE


PUZZLET 075

How Many Ones?

Write down successive integers from 1 upwards. When will the number of times the digit "1" has been written down equal the last number to have been written down? The trivial result of writing just "1" down can be ignored.


MAIN MENU
SOLUTION
ARCHIVES

Site design/maintenance: Dave Ellis E-mail me!
Last Updated: January 12th, 2010.