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Posers and Puzzles

Posers and Puzzles

  1. Standard member cestrianlabrador
    Cave Canem
    03 Jan '06 09:43
    i heard this on the radio the other day..might not work for everyone but lets give it a go..
    1. pick a number between 1 - 100
    2. with this number you have picked multiply by 9
    3. with this total add the digits together... eg total is 45 4+5 =9
    4. you should have a single digit left from this, now take away 5 from this...eg 9 - 5 =4
    5. if we said that ..1 = a , 2 = b , 3 = c , 4 = d and so on in that order convert your single number to a letter
    6. with the letter you have, think of a country beginning with that letter. e.g "f" = finland
    7. now with the name of the country, think of a animal using the last word of that country e.g finland = "d" dog...

    hopefully we have the same idea as the thread title.. : )
  2. Standard member XanthosNZ
    Cancerous Bus Crash
    03 Jan '06 10:26
    Originally posted by cestrianlabrador
    i heard this on the radio the other day..might not work for everyone but lets give it a go..
    1. pick a number between 1 - 100
    2. with this number you have picked multiply by 9
    3. with this total add the digits together... eg total is 45 4+5 =9
    4. you should have a single digit left from this, now take away 5 from this...eg 9 - 5 =4
    5. if we ...[text shortened]... ountry e.g finland = "d" dog...

    hopefully we have the same idea as the thread title.. : )
    The whole number section is structured to give 4 as your number (n is divisible by 9 iff the sum of the digits is 9 or a multiple of 9 [which would in turn have a sum of 9].

    You therefore pick a country beginning with D. These being Denmark, Djibouti, Dominica and the Dominican Republic. Obviously the first is by far the most chosen as the others are obscure and less likely to be the first thought of. Then the matter of picking an animal starting with k. Kangaroo is a common one, probably followed by koala.

    All in all, a crappy example of choice reduction.
  3. Standard member cestrianlabrador
    Cave Canem
    03 Jan '06 11:03
    Originally posted by XanthosNZ
    The whole number section is structured to give 4 as your number (n is divisible by 9 iff the sum of the digits is 9 or a multiple of 9 [which would in turn have a sum of 9].

    You therefore pick a country beginning with D. These being Denmark, Djibouti, Dominica and the Dominican Republic. Obviously the first is by far the most chosen as the others are o ...[text shortened]... s a common one, probably followed by koala.

    All in all, a crappy example of choice reduction.
    says the twitchy neck person....miserable sod...
  4. Standard member Smiffy
    SPS CLAN
    03 Jan '06 11:06
    lol thats the way
  5. 03 Jan '06 14:21
    Originally posted by cestrianlabrador
    i heard this on the radio the other day..might not work for everyone but lets give it a go..
    1. pick a number between 1 - 100
    2. with this number you have picked multiply by 9
    3. with this total add the digits together... eg total is 45 4+5 =9
    4. you should have a single digit left from this, now take away 5 from this...eg 9 - 5 =4
    5. if we ...[text shortened]... ountry e.g finland = "d" dog...

    hopefully we have the same idea as the thread title.. : )
    I picked 99.
    9*9=891
    8+9+1=18
    18-5=13?


    Remember to limit the choices to numbers from 1 to 10 when performing this trick, or else ask to add the digits repeatedly until we actually have an one digit number.
  6. Standard member Wibble Wobble
    Action barbie
    03 Jan '06 21:14
    Originally posted by fetofs
    I picked 99.
    9*9=891
    8+9+1=18
    18-5=13?


    Remember to limit the choices to numbers from 1 to [b]10
    when performing this trick, or else ask to add the digits repeatedly until we actually have an one digit number.[/b]
    9*9 = 81
  7. Subscriber BigDoggProblem
    The Advanced Mind
    03 Jan '06 21:46 / 1 edit
    Originally posted by Wibble Wobble
    9*9 = 81
    He meant 99*9 = 891.
  8. Standard member Bowmann
    Non-Subscriber
    03 Jan '06 22:19
    Originally posted by XanthosNZ
    All in all, a crappy example of choice reduction.
    That wasn't very nice. You didn't say this to the guy who posted the same thing a few weeks back.
  9. 06 Jan '06 23:36 / 1 edit
    Originally posted by fetofs
    I picked 99.
    9*9=891
    8+9+1=18
    18-5=13?


    Remember to limit the choices to numbers from 1 to [b]10
    when performing this trick, or else ask to add the digits repeatedly until we actually have an one digit number.[/b]
    18, 1+8=9 gives same answer anyway, what cestrian labrador should have clarified was that you have to keep going till you get a single (digit) number.
  10. Standard member orfeo
    Missing 285 + 1
    07 Jan '06 06:55
    The fact that you planted Denmark and kangaroos in people's heads via the thread title kind of ruins the point, doesn't it?