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CITIZEN GETS IT ALL WRONG!!!
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popat
#101 Posted : Monday, October 29, 2012 11:25:43 AM
Rank: Member

Joined: 12/2/2009
Posts: 299
Location: kenya
So where are we on this one.Me this 13 is the collect answer.Whichever way u look at it.
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FancyFace
#102 Posted : Monday, October 29, 2012 12:00:04 PM
Rank: Member

Joined: 7/31/2009
Posts: 743
kenmac wrote:
radio wrote:
13


what is the difference between ;

21 - 6 + 2
and
21 + 2 - 6 ???


Laughing out loudly

the difference is the same Laughing out loudly Laughing out loudly

seriously now that we are stuck at AS (BODMAS):

21-6+2=

Add first

-6+2= -4

Then subtract

so then 21-4= 17

Thank me latersmile

Problems can get out of proportion, and not only in the wee small hours. Don't let the problems eclipse the Master. Let the Master eclipse the problems.
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quicksand
#103 Posted : Monday, October 29, 2012 12:00:45 PM
Rank: Veteran

Joined: 7/5/2010
Posts: 2,061
Location: Nairobi
popat wrote:
So where are we on this one.Me this 13 is the collect answer.Whichever way u look at it.


Type 21-3×2+4÷2 exactly as is into the Google search box, hit Enter ...
Alternatively type =21-3*2+4/2 into the Excel expression bar (with the equals sign)
Both evaluate to 17.
Not convinced? Enter the expression in WolframAlpha
http://www.wolframalpha.com
the site ran by Wolfram Research, the guy who invented Mathematica.
To those who insist 13, the people who programmed Excel and Google are brighter than you, and Wolfram is a certified Mathematical genius, I am not saying I am at par with them, far from it but at least I can evaluate this equation correctly ...
17 is the answer ..end of story.
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Intelligentsia
#104 Posted : Monday, October 29, 2012 12:43:19 PM
Rank: Elder

Joined: 10/1/2009
Posts: 2,436
wa wa wa how did I miss these thread?!
1O3 posts, including what looks like the beginning of a discussion paper....

17 is the answer.
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ZZE123
#105 Posted : Monday, October 29, 2012 12:47:49 PM
Rank: Elder

Joined: 6/21/2008
Posts: 2,490
I got an A in mathematics’. Answer is 17
The man who marries a beautiful woman, and the farmer who grows corn by the roadside have the same problem
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samsa
#106 Posted : Monday, October 29, 2012 12:54:10 PM
Rank: Member

Joined: 5/7/2009
Posts: 155
Sufficiently Philanga....thropic wrote:
Im soo with @mwenza on this.
Pls lets use our akili!
17 it is!
Evn Bodmas is used with akili!


HAHA....
use a spreadsheet as follows (21-6+2)

A1 21
A2 -6
A3 2

Sum(A1:A3) = 17

BODMAS is applicable with intelligence!
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Sufficiently Philanga....thropic
#107 Posted : Monday, October 29, 2012 1:02:24 PM
Rank: Elder

Joined: 9/23/2010
Posts: 2,225
Location: Sundowner,Amboseli
popat wrote:
So where are we on this one.Me this 13 is the collect answer.Whichever way u look at it.

You must be very difficult!
@SufficientlyP
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tycho
#108 Posted : Monday, October 29, 2012 1:26:56 PM
Rank: Elder

Joined: 7/1/2011
Posts: 8,804
Location: Nairobi
quicksand wrote:
popat wrote:
So where are we on this one.Me this 13 is the collect answer.Whichever way u look at it.


Type 21-3×2+4÷2 exactly as is into the Google search box, hit Enter ...
Alternatively type =21-3*2+4/2 into the Excel expression bar (with the equals sign)
Both evaluate to 17.
Not convinced? Enter the expression in WolframAlpha
http://www.wolframalpha.com
the site ran by Wolfram Research, the guy who invented Mathematica.
To those who insist 13, the people who programmed Excel and Google are brighter than you, and Wolfram is a certified Mathematical genius, I am not saying I am at par with them, far from it but at least I can evaluate this equation correctly ...
17 is the answer ..end of story.


If a certified mathematical genius makes a statement, then that statement is true.

Wolfram states that 21-6+2= 17. And Wolfram is a mathematical genius.

Therefore the statement 21-6+2= 17 is true.

Clearly this proof is not relying on mathematics. It relies on social postulates, that is on our judgment on a person as a mathematical genius or that he scored an A in his exams.

This argument still holds for any program made by humans.

But in essence it cannot be a proof. I say the answer is 17 because it is the consequence of a simple and 'natural' ordering procedure and as beings with limited rationality we 'should' always seek to simplify. That is conform as much as possible, with 'nature'.
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sky5
#109 Posted : Monday, October 29, 2012 1:37:12 PM
Rank: Member

Joined: 5/7/2010
Posts: 282
Location: Nairobi
The answer is 17.
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sanity
#110 Posted : Monday, October 29, 2012 1:55:39 PM
Rank: Member

Joined: 1/24/2011
Posts: 407
Location: Nairobi,Kenya
Tebes wrote:
The Know Zone program, Mathematics section, gets it all wrong and the presenters need to go to school first before they mislead children.

sample this,

21-3×2+4÷2=

These idiots are giving the answer as 20.

Shame on you Shame on you Shame on you Shame on you



The answer is 20...Nobody said use BODMAS!
Hope is not a strategy
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