Puzzle

Started by Emax, Sep 06 2007 08:31 PM

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#1 Emax

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Posted 06 September 2007 - 08:31 PM

Sometimes, the direct, methodical approach to a problem isn't the best one.

Try adding up all of the whole integers between 1 and 256. Calculators are not allowed - only a pencil and your imagination.

How did you do it? How log did it take?

Quick solution on Monday.

There are three roads to ruin; women, gambling and technicians. The most pleasant is with women, the quickest is with gambling, but the surest is with technicians. Georges Pompidou

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#2 SkiBachelor

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Interests:Hi, I'm Cameron!

Posted 06 September 2007 - 08:59 PM

You can either use the 'Summation' feature on your TI graphing calculator.

- Cameron

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#3 Peter

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Posted 06 September 2007 - 09:08 PM

1+256=257
2+255=257
3+254=257
4+253=257

257 x 128 = 32,896
Is that right? It took about 30 seconds.

- Peter<br />
Liftblog.com

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#4 SkiBachelor

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Posted 06 September 2007 - 09:30 PM

Yes, that's the trick I was trying to remember.

- Cameron

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#5 Emax

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Posted 07 September 2007 - 05:50 AM

Skier, on Sep 6 2007, 11:08 PM, said:

1+256=257
2+255=257
3+254=257
4+253=257

257 x 128 = 32,896
Is that right? It took about 30 seconds.

That's it.

There are three roads to ruin; women, gambling and technicians. The most pleasant is with women, the quickest is with gambling, but the surest is with technicians. Georges Pompidou

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