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What is Correct
Posted 04 July 2007 - 11:20 PM
Conversions from base-x to base-10
13 in base-10: 1 * 10^1 + 3 * 10^0 = 10 + 3 = 13
13 in base-9: 1 * 9^1 + 3 * 9^0 = 9 + 3 = 12
There we go, the correct answer.
Posted 05 July 2007 - 12:16 AM
But that is true
Posted 05 July 2007 - 08:09 PM
Posted 03 August 2007 - 12:15 AM
A a linguist I have to say that you got this one wrong. Just because something is not true does not make it incorrect grammar and vice versa:
The sky [is | are] red.
The answer is "is" despite the statement being incorrect.
Grammatical correctness does not imply correctness as a whole. The nature of a brain teaser is that it challenges us to look at many angles. Thus, regardless of the grammatical correctness, the content of the statement must also be correct for the entire statement to be correct.
Posted 03 August 2007 - 10:34 PM
Is it correct that seven and five is thirteen or seven and five are thirteen?
The 'or' implies that at least one is correct. As only once change has occurred we must assume that the correctness refers to the change.
Posted 02 September 2007 - 04:15 AM
Posted 02 September 2007 - 04:18 AM
Posted 25 September 2007 - 09:10 PM
There are 7 children standing in a row, each with a number/label (1 thru 7). Child 5 is thiteen years old, child 7 is also thirteen.
So, 5 and 7 'are' thirteen.
Posted 26 September 2007 - 01:02 AM
I thought of it because of the joke "6 * 9 = 42", this joke is from The Hitchhiker's Guide to the Galaxy. It's performed in base-13.
DARN, that thing has always puzzled me, and you tell me the obvious in so little words. I was always guessing someone made a translation error (I read it in Dutch), so I never thought of base-conversion.
Thanx for beating some sense into me.
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