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Sandy Wood
Brain Game: Can You Digit?
by Sandy Wood - June 11, 2008 - 6:30 AM

bloghead_braingames.jpg

“Numbers, numbers everywhere, but not a kid to think!” That’s what my algebra teacher used to say. Of course, she was about 200 years old. I think she taught my parents, too, if they had algebra back then. Anyway, speaking of numbers…

What’s the next number in this sequence?
8, 5, 4, 9, 1, 7, …

Click here for the answer.

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Comments (7)

  1. 6 – they’re arranged alphabetically

    posted by Gregg N. on 6-11-2008 at 6:55 am

  2. no no its obviously 4 followed by 3,8,0,6,3,2,5,-1,5,2,3,4,-2,4,1,0,3,-3
    i mean, like, obviously.

    posted by michael on 6-11-2008 at 8:16 am

  3. Michael, you had me up until the -1. The -1 really furrows my brow. >:)

    posted by Sandy on 6-11-2008 at 8:23 am

  4. Michael’s right. I can work out a 24-degree polynomial equation that generates exactly that sequence of numbers.

    posted by gmsc on 6-11-2008 at 9:04 am

  5. Funny that I decided to read a number sequence brain teaser today. Just this morning I got this one from my lil bro.

    Start with this:
    1
    11
    21
    1211
    111221
    312211
    13112221

    Now find the next line of numbers. Once you figure it out, you can find any number of lines after this.

    posted by nutmeag on 6-11-2008 at 9:44 am

  6. I got the right answer, six, but apparently for the wrong reason: since the word “digit” was in the title, I thought it was the digits from zero to nine in alphabetical order. Thank goodness I didn’t think it was zero to twenty, or I would have gotten the answer wrong.

    posted by Betsy on 6-11-2008 at 12:35 pm

  7. Fifteen. It’s Paris Hilton trying to count down from 10.

    posted by loomis on 6-11-2008 at 12:55 pm

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