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Brain Twister
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09/02/2010 13:06:52
 
 
Information générale
Forum:
Games
Catégorie:
Mathématique
Titre:
Divers
Thread ID:
01448140
Message ID:
01448420
Vues:
47
>>>>Look at the math below. They say only people with an IQ of 120 and over are able to figure this out.
>>>>
>>>>If:
>>>>
>>>>2 + 3 = 10
>>>>7 + 2 = 63
>>>>6 + 5 = 66
>>>>8 + 4 = 96
>>>>
>>>>Then:
>>>>
>>>>9 + 7 = ?
>>>
>>>It took me two minutes and I did not look at the rest of the thread
>>>
>>>multiply the first number with itself and add the product of the two numbers to it, thus
>>>
>>>9 + 7 = 81 + 63 = 144
>>
>>Interesting. I saw it differently (and, I think, more simply) :
>>Add the two numbers together and multiply by the first.
>
>Now you need to prove mathemacially it will give you the same result.

Tore just did it for me :-}
I'm wondering about a third solution.....
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