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Ed Mason (Logician)
Posted on Friday, December 16, 2005 - 10:48 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Nice quick one for the annoying little clever clogs amongst us...

When do 7 and 2 make 31?
Lewis Zeiters (Lzeiters)
Posted on Friday, December 16, 2005 - 11:11 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

base 10 mathematics involved?
Ed Mason (Logician)
Posted on Friday, December 16, 2005 - 11:33 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

base 10 mathematics involved? nope :)
Nessa (Lyra)
Posted on Saturday, December 17, 2005 - 12:28 am:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Nope because a different base is involved? Like binary?
7 = 111 = 3 ones,
2 = 10 = 1 one?
Or nope because it's not really a math question?
7 = days in a week, 31 = days in a month?
Ed Mason (Logician)
Posted on Saturday, December 17, 2005 - 1:09 am:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Nope because a different base is involved? yes Like binary? no...
7 = 111 = 3 ones,
2 = 10 = 1 one? ...but that is a fantastic reason, it's a pity to have to say it's not my answer. By all means, try another one :)
Ian (Image)
Posted on Saturday, December 17, 2005 - 2:02 am:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Are all of the numbers given in the same base? Base 2? 3? 4? 5? 6? 7? 8? 9? 10? A? B? C? D? E? F? G?
Nessa (Lyra)
Posted on Saturday, December 17, 2005 - 4:26 am:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

You shouldn't encourage me, or you'll end up with a lot of wild guesses :)

If not all numbers are in the same base, then are:
7 and 2 in the same base?
7 and 31 in the same base?
2 and 31 in the same base?

Are 7,2,31 in base 10 and we need to convert them to some other base(s) to find the answer? (If no, replace "base 10" with "base *", where * = some number, and repeat question.)

Or, are 7,2,31 the result of converting some numbers x,y,z from base 10 to some other base(s)? (If no, replace "base 10" with "base *" and repeat question.)

Or, are 7,2,31 themselves the bases of some numbers x,y,z which satisfy x+y=z?
Mezzoforte (Mezzoforte)
Posted on Saturday, December 17, 2005 - 6:06 am:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

prime numbers relevant? though 7 is the fourth prime number. . .
Mezzoforte (Mezzoforte)
Posted on Saturday, December 17, 2005 - 6:12 am:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

is "and" "times"?
is "and" "plus"?

Well:

7*2 = 14 ~ 31 base 13/3
7+2 = 9 ~ 31 base 8/3
Paul S (Psdubl07)
Posted on Saturday, December 17, 2005 - 8:00 am:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Baskin and Robbins involved? ;-)
Ed Mason (Logician)
Posted on Saturday, December 17, 2005 - 12:31 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Are all of the numbers given in the same base? Base 2? 3? 4? 5? 6? 7? 8? 9? 10? A? B? C? D? E? F? G? I don't know what the letters mean, by my source said base-16 - is that F?

You shouldn't encourage me, or you'll end up with a lot of wild guesses darn...:)

If not all numbers are in the same base, then are:
7 and 2 in the same base?
7 and 31 in the same base?
2 and 31 in the same base? all 3 numbers are in the same base as each other

Are 7,2,31 in base 10 and we need to convert them to some other base(s) to find the answer? (If no, replace "base 10" with "base *", where * = some number, and repeat question.) no inter-basing is involved

Or, are 7,2,31 the result of converting some numbers x,y,z from base 10 to some other base(s)? (If no, replace "base 10" with "base *" and repeat question.) applies here too - no inter-basing whatsoever :)

Or, are 7,2,31 themselves the bases of some numbers x,y,z which satisfy x+y=z? good try, but no

prime numbers relevant? though 7 is the fourth prime number. . . nope :)

is "and" "times"?
is "and" "plus"? neither of these :) the two numbers are manipulated in some fashion, but not in either of these ways

Well:

7*2 = 14 ~ 31 base 13/3
7+2 = 9 ~ 31 base 8/3 i'll take your word for it - but unfortunately, any of this is irrelevant to the puzzle :)

Baskin and Robbins involved? ;-) as much as I would love it to be, they are not :(;)
John Morahan (Wunderland)
Posted on Saturday, December 17, 2005 - 1:04 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Base 16 would be "G". Or, more properly, "10". :)
Also, 7 ^ 2 = 31 in base 16.
Mezzoforte (Mezzoforte)
Posted on Saturday, December 17, 2005 - 4:38 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Good job!
Ed Mason (Logician)
Posted on Saturday, December 17, 2005 - 6:37 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

*CLAPS LOUDLY AND ENTHUSIASTICALLY*

Well done, Mr. Morahan!

***** SPOILER *****

7^2 (otherwise written as 7 x 7) does indeed equal 31.
Nessa (Lyra)
Posted on Sunday, December 18, 2005 - 1:06 am:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Nice one, Wunderland!

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