A number of 50 digits has all its digits equal to 1 except the 26th digit. If the number is divisible by 13, then find the digit in the 26th place.
(In reply to
re(2): A similar problem but perhaps a bit trickier by Kirk)
Of course, I meant 'x' is getting bigger and bigger if we take 7x=22 and 7x=33 etc. My argument still applies though, but I apologise for the error! Oh, and "hand" should read "handy"!
Kirk

Posted by Kirk
on 20031120 17:17:18 