=SDC= Q26: The second math(s) question
Jerry Friedman
If 50+40=70, what's 20+10?
--
Jerry Friedman
Mark Brader
> If 50+40=70, what's 20+10?
I don't know. But if 10+50=40, what's 20+10?
--
Mark Brader | "'Settlor', (i) in relation to a testamentary trust,
Toronto | means the individual referred to in paragraph (i)."
m...@vex.net | -- Income Tax Act of Canada (1972-94), 108(1)(h)
Hatunen
<je...@totally-official.com> wrote:
>SDC Q26: The second math(s) question
>
>If 50+40=70, what's 20+10?
30
Reminds me of the old joke sometimes attributed to Abraham
Lincoln:
First man. If we call a tail a leg, how many legs does a dog
have?
Second man. Five
First man. No, four. Calling a tail a leg doesn't make it one.
--
************* DAVE HATUNEN (hat...@cox.net) *************
* Tucson Arizona, out where the cacti grow *
* My typos & mispellings are intentional copyright traps *
Paul Wolff
>Jerry Friedman:
>> If 50+40=70, what's 20+10?
>
>I don't know. But if 10+50=40, what's 20+10?
30
--
Paul
xxx
Athel Cornish-Bowden
I think Paul is right, and the "xxx" in his sig may indicate that it's
for the same reason: L + XL = LXX, so XX + X = XXX
--
athel
R H Draney
>
>SDC Q26: The second math(s) question
>
>If 50+40=70, what's 20+10?
Overtipping....r
--
Evelyn Wood just looks at the pictures.
Cora Fuchs
If that's not the Totally Official answer, it should at least be
sheepworthy!
Jitze
<athe...@yahoo.co.uk> wrote:
But L+XL = LLX, not LXX as claimed here...
Jitze
Paul Wolff
Athel is right that my generous kisses were thirty. But those were in
reply to Mark's variation, X + XL, not L + XL. I can't do it for this
latter letter litter.
--
Paul
Mark Brader
>>>>> If 50+40=70, what's 20+10?
Mark Brader:
>>>> I don't know. But if 10+50=40, what's 20+10?
Paul Wolff:
>>> 30
Yes.
Athel Cornish-Bowden:
>> I think Paul is right, and the "xxx" in his sig may indicate that it's
>> for the same reason: L + XL = LXX, so ...
Huh?
Jitze Couperus:
> But L+XL = LLX ...
Huh?
--
Mark Brader "People with whole brains, however, dispute
Toronto this claim, and are generally more articulate
m...@vex.net in expressing their views." -- Gary Larson
Rich Ragan
> Jerry Friedman:
>>>>>> If 50+40=70, what's 20+10?
>
> Mark Brader:
>>>>> I don't know. But if 10+50=40, what's 20+10?
>
> Paul Wolff:
>>>> 30
>
> Yes.
>
> Athel Cornish-Bowden:
>>> I think Paul is right, and the "xxx" in his sig may indicate that it's
>>> for the same reason: L + XL = LXX, so ...
>
> Huh?
>
> Jitze Couperus:
>> But L+XL = LLX ...
>
> Huh?
Just to throw in an observation/question? Why is this called the
"second math(s) question"? Maybe it's a clue? Ditto for the second
bird one.
Rich
Athel Cornish-Bowden
L + XL certainly equals LXX, so what do you mean? (LLX means nothing as
a Roman numeral.)
--
athel
Athel Cornish-Bowden
> Jerry Friedman:
>>>>>> If 50+40=70, what's 20+10?
>
> Mark Brader:
>>>>> I don't know. But if 10+50=40, what's 20+10?
>
> Paul Wolff:
>>>> 30
>
> Yes.
>
> Athel Cornish-Bowden:
>>> I think Paul is right, and the "xxx" in his sig may indicate that it's
>>> for the same reason: L + XL = LXX, so ...
>
> Huh?
I wasd going to query your huh? but on drafting an answer I see it was
fully justified, so I'll add my own
huh?
--
athel
Lars Enderin
(50 + 40 = 90).
Athel Cornish-Bowden
You are right, alas, see my answer to Mark.
So if adding L to XL is so error-prone, what about multiplying L by XL
(without converting to decimal first and converying back)? Maybe that's
too easy (or too difficult to avoid thinking about the decimals), so
what about XL1 x CCLXXI?
--
athel
Jerry Friedman
...
> Just to throw in an observation/question? Why is this called the
> "second math(s) question"? Maybe it's a clue?
Not a clue, just me stumped for a slug and taking advantage of the
earlier question on Eratosthenes. The question composer's hint for
this one is 40+30=58.
> Ditto for the second bird one.
Hm.
--
Jerry Friedman, T. O. Hinter
Peter Morris
"Rich Ragan" <Rich....@dontMailMe.com> wrote in message
news:y43vk.8315$np7....@flpi149.ffdc.sbc.com...
>
> Just to throw in an observation/question? Why is this called the "second
> math(s) question"? Maybe it's a clue? Ditto for the second bird one.
I think the first one was biceps/ triceps/ forceps
Paul Wolff
>On Sep 1, 10:20 pm, Rich Ragan <Rich.Ra...@dontMailMe.com> wrote:
>...
>
>> Just to throw in an observation/question? Why is this called the
>> "second math(s) question"? Maybe it's a clue?
>
>Not a clue, just me stumped for a slug and taking advantage of the
>earlier question on Eratosthenes. The question composer's hint for
>this one is 40+30=58.
>
OK, it is possible to interpret the symbols consistently so that
50+40=70, 40+30=58, and 20+10=28. But in the morning, I won't remember
how.
--
Paul
Jerry Friedman
Thank you! The correct answer is 28.
In case you've forgotten, Michael Hamm's explanation is, "This is the
arithmetic used by those shopping at sales that advertise 'take 50%
and an additional 40% off' (a total of 70%)."
--
Jerry Friedman, T. O. Panelist
--
Jerry Friedman, T. O. Panelist
Evan Kirshenbaum
> Reminds me of the old joke sometimes attributed to Abraham
> Lincoln:
>
> First man. If we call a tail a leg, how many legs does a dog
> have?
>
> Second man. Five
>
> First man. No, four. Calling a tail a leg doesn't make it one.
This first shows up (with a calf rather than a dog) in Google Books in
1844. Lincoln was in the Illinois House of Representatives, so it's
not impossible that it might have been his, but it seems unlikely. (I
have, I should add, seen it so attributed.)
--
Evan Kirshenbaum +------------------------------------
HP Laboratories |Voting in the House of
1501 Page Mill Road, 1U, MS 1141 |Representatives is done by means of a
Palo Alto, CA 94304 |little plastic card with a magnetic
|strip on the back--like a VISA card,
kirsh...@hpl.hp.com |but with no, that is, absolutely
(650)857-7572 |*no*, spending limit.
| P.J. O'Rourke
http://www.kirshenbaum.net/
Peter Morris
"Evan Kirshenbaum" <kirsh...@hpl.hp.com> wrote in message
news:zlmq17...@hpl.hp.com...
> Hatunen <hat...@cox.net> writes:
>
>> Reminds me of the old joke sometimes attributed to Abraham
>> Lincoln:
>>
>> First man. If we call a tail a leg, how many legs does a dog
>> have?
>>
>> Second man. Five
>>
>> First man. No, four. Calling a tail a leg doesn't make it one.
>
> This first shows up (with a calf rather than a dog) in Google Books in
> 1844. Lincoln was in the Illinois House of Representatives, so it's
> not impossible that it might have been his, but it seems unlikely. (I
> have, I should add, seen it so attributed.)
Fairly reliable contemporary reports record him using the riddle on
several occasions. However, he did not invent it. Versions of it predate
him by a few decades.
A few records of him using it listed here: http://tinyurl.com/6862hn
Paul Wolff
>On Sep 2, 1:14 pm, Paul Wolff <bounc...@two.wolff.co.uk> wrote:
>> Jerry Friedman <je...@totally-official.com> wrote>On Sep 1, 10:20 pm,
>>Rich Ragan <Rich.Ra...@dontMailMe.com> wrote:
>> >...
>>
>> >> Just to throw in an observation/question? Why is this called the
>> >> "second math(s) question"? Maybe it's a clue?
>>
>> >Not a clue, just me stumped for a slug and taking advantage of the
>> >earlier question on Eratosthenes. The question composer's hint for
>> >this one is 40+30=58.
>>
>> I can see 40+30=52, but not yet 58, on the hint front.
>>
>> OK, it is possible to interpret the symbols consistently so that
>> 50+40=70, 40+30=58, and 20+10=28. But in the morning, I won't remember
>> how.
>
>Thank you! The correct answer is 28.
>
>In case you've forgotten, Michael Hamm's explanation is, "This is the
>arithmetic used by those shopping at sales that advertise 'take 50%
>and an additional 40% off' (a total of 70%)."
>
percentages. For which reason I needed the hint. Before that it would
have been like offering trial solutions to a one-time pad encryption.
--
Paul
Jitze
>
>Jitze Couperus:
>> But L+XL = LLX ...
>
In my collection of little wooden cubes which I use to teach
arithmetic to latin kindergartners, I have a cube marked "X"
and a cube marked "L". When I arrange these two cubes
on the nursery floor, I see them next to each other
spelling "XL".
Teacher now adds a third cube, also marked with an "L"
so now I sort them with like cubes at the front and the odd man out
at the end, and I see three cubes spelling LLX.
jawohl?
Jitze
Richard Bollard
>On Sun, 31 Aug 2008 13:36:44 -0700 (PDT), Jerry Friedman
><je...@totally-official.com> wrote:
>
>>SDC Q26: The second math(s) question
>>
>>If 50+40=70, what's 20+10?
>
>30
>
Alternatively 20+10 = "anything", as anything follows from a false
premise.
But as it isn't, it ain't. That's logic.
--
Richard Bollard
Canberra Australia
To email, I'm at AMT not spAMT.
Hatunen
<je...@totally-official.com> wrote:
>In case you've forgotten, Michael Hamm's explanation is, "This is the
>arithmetic used by those shopping at sales that advertise 'take 50%
>and an additional 40% off' (a total of 70%)."
Which is, of course, mathematically correct.
Jerry Friedman
Your unreduced Cormo is here.
--
Jerry Friedman, T. O. Sheepmarketer