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Whats the answer to this maths question?



Bad Ash

Unregistered User
Jul 18, 2003
1,905
Housewares
The question I saw was something like 5+5+5-5+5-5x0. Worryingly the most popular answer wasn't correct.

The answer to the OP is 41 and to mine it's 15.
 






Shifty89

New member
Sep 29, 2007
228
Sigh* There is no answer otherwise 1=2 in so far as

0 x 1 = 0
0 x 2 = 0
There for 0 x 1 = 0 x 2
Dividing by zero
0/0 x 1 = 0/0 x 2
therefore 1 = 2

So there is no defined answer to your question.

No. You're not allowed to divide by zero, so what you have written is completley wrong.
 


Goldstone Rapper

Rediffusion PlayerofYear
Jan 19, 2009
14,865
BN3 7DE
The question I saw was something like 5+5+5-5+5-5x0. Worryingly the most popular answer wasn't correct.

The answer to the OP is 41 and to mine it's 15.

There is nothing worrying.

Most people don't know a mathematical convention such as BODMAS. As a result, quite understandably and in a reasoned way, most people apply a convention of 'left to right' that is commonly used and works for other tasks in their lives.
 
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BRIGHT ON Q

Well-known member
Jul 5, 2003
9,282
My calculator says the answer is 1 so it must be true.
I would have said 81 but i'm a bit fick.
 




skipper734

Registered ruffian
Aug 9, 2008
9,189
Curdridge
Maybe Carrie knows the answer? She has a Maths GCSE.

article-2040729-0E0A751C00000578-15_306x324.jpg
 






CliveWalkerWingWizard

Well-known member
Aug 31, 2006
2,693
surrenden
The question I saw was something like 5+5+5-5+5-5x0. Worryingly the most popular answer wasn't correct.

The answer to the OP is 41 and to mine it's 15.

Surely the answer to yours is 25 ?

Jsut seen ththat it is a - between 3rd and 4th 5, so 15 is correct.:blush:
 


Herr Tubthumper

Well-known member
NSC Patron
Jul 11, 2003
63,063
The Fatherland
3 divided by a half is a good one as well.
 








Jan 19, 2009
3,151
Worthing
I asked 3 accountants this question, and they both gave the same answer of 41.
 










KZNSeagull

Well-known member
Nov 26, 2007
21,146
Wolsingham, County Durham
I'm with Perkino on 85

595/7=85
595/6=99
I just don't follow your logic.

I think what Mr Ace is saying is this:
it takes 7 plates to make 1 plate.
You then put that 1 plate back in the pile to make more plates (so your pile has gone down by 7 to 588, plus the one you have just made makes 589), so you are only effectively using 6 plates at a time to make 1 plate.
Do that until you run out of plates and you have made 99 plates.
The question says how many can be MADE, not how many will you end up with at the end.

Or it might be something completely different.
 






8ace

Banned
Jul 21, 2003
23,811
Brighton
I think what Mr Ace is saying is this:
it takes 7 plates to make 1 plate.
You then put that 1 plate back in the pile to make more plates (so your pile has gone down by 7 to 588, plus the one you have just made makes 589), so you are only effectively using 6 plates at a time to make 1 plate.
Do that until you run out of plates and you have made 99 plates.
The question says how many can be MADE, not how many will you end up with at the end.

Or it might be something completely different.

:thumbsup:
 


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