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capstinence
Joined: 12 May 2005
Posts: 44
Location: Los Angeles, CA
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 Posted: Fri May 13, 2005 5:49 am Post subject: Try This One |
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The class I tutor has been into palindromes lately... check this out:
Transform the following numbers into a palindromic sequence (one that reads the same backwards as forwards) by applying the same formula to all the numbers. What is the formula and what are the resulting numbers?
31, 3, 5, 11, 23, 13
(you can ignore the commas when looking at the sequence as a palindrome) |
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Michael Chu
Joined: 10 May 2005
Posts: 1654
Location: Austin, TX (USA)
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| Posted: Fri May 13, 2005 8:22 pm Post subject: |
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Ah! After discussing the last puzzle, this one fell into place.
I have to admit, I solved it through pure trial and error.
I won't reveal the answer yet (give it at least a day  ), but it's somewhat related to this puzzle
Last edited by Michael Chu on Sun May 15, 2005 3:03 am; edited 1 time in total |
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OSUsammy13
Joined: 14 May 2005
Posts: 9
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| Posted: Sat May 14, 2005 8:27 pm Post subject: |
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| Chu made it much easier with his coments. Guessed a technique and verified. |
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Dude111
Joined: 23 Sep 2010
Posts: 147
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| Posted: Thu Sep 23, 2010 7:10 pm Post subject: |
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Wow i have NO CLUE! (I got the other one Mike linked to wrong (I said "All of them" ))
Any hints on this Mike?
Last edited by Dude111 on Fri Oct 10, 2014 10:56 am; edited 2 times in total |
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Michael Chu
Joined: 10 May 2005
Posts: 1654
Location: Austin, TX (USA)
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| Posted: Fri Sep 24, 2010 11:31 am Post subject: |
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| Try squares. |
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Dude111
Joined: 23 Sep 2010
Posts: 147
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| Posted: Fri Oct 10, 2014 10:57 am Post subject: |
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Hmmmmmmm I know what squares are but still cant figure it out  |
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Michael Chu
Joined: 10 May 2005
Posts: 1654
Location: Austin, TX (USA)
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| Posted: Mon Oct 13, 2014 6:20 am Post subject: |
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Square each number in the string - the values now read the same forwards and backwards:
961 9 25 121 529 169 |
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Dude111
Joined: 23 Sep 2010
Posts: 147
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| Posted: Sun Dec 14, 2014 10:42 am Post subject: |
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| Well ill be!! |
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