My Math Forum six digit numbers...

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 September 15th, 2010, 06:43 AM #1 Newbie   Joined: Jun 2009 Posts: 14 Thanks: 0 six digit numbers... ok....here is a nice problem/brain teaser...: How many six digit numbers can be formed such that the sum of the first three digits is equal to the sum of the last three digits??? (Leading zeros are not allowed, and the repetition of digits is allowed.) HELP
 September 15th, 2010, 09:13 AM #2 Global Moderator   Joined: Dec 2006 Posts: 20,099 Thanks: 1905 50412 (of which 5856 have no repetition)
 September 15th, 2010, 09:55 AM #3 Global Moderator     Joined: Nov 2009 From: Northwest Arkansas Posts: 2,766 Thanks: 4 Re: six digit numbers... I got 50413. Must have counted one twice...
 September 16th, 2010, 01:41 AM #4 Newbie   Joined: Jun 2009 Posts: 14 Thanks: 0 Re: six digit numbers... could you please explain a little ???
 September 16th, 2010, 02:47 PM #5 Global Moderator   Joined: Dec 2006 Posts: 20,099 Thanks: 1905 I checked each 6-digit integer.
September 16th, 2010, 04:01 PM   #6
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Re:

Quote:
 Originally Posted by skipjack I checked each 6-digit integer.
And here I was, thinking you had no sense of humor ...

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