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Windows 7: 482(9+3) = ?

View Poll Results: Which answer do you prefer?
2 35 58.33%
288 25 41.67%
Voters: 60. You may not vote on this poll

12 May 2011   #31

Windows 7 Ultimate x64 Service Pack 1
 
 

Here's a convincing arguement.

Quote:
An issue of mathematical grammar circulating the internet lately has been how to read a mathematical expression like
that involves a combination of division and implied multiplication.

The standard way to read arithmetic expression (i.e. order of operations) involves dealing with parentheses first, then you do all division and multiplication operations from left to right, then all addition and subtraction operations from left to right.

So, this expression is computed as



It doesn't matter whether or not the multiplication is made explicit, as in
or if division is represented by a slash, as in
all of these variations mean the same thing.



One thing to keep in mind is that not everybody follows the standard. Some people prefer to do implied multiplication before other multiplication and division operations. Some people prefer to do all multiplications before division with /. Some people even prefer to do addition before division with /.

So, when you are reading math from an unfamiliar source, make sure you know what convention they are adopting. And no matter what convention you prefer, you really ought to write things in an unambiguous fashion -- e.g. you should avoid
and instead use the crystal clear
Source
My System SpecsSystem Spec
12 May 2011   #32

Win7 Ultimate SP1 6.1.7601 x86
 
 

Remember the PEMDAS rule?
My System SpecsSystem Spec
12 May 2011   #33

Windows7 Pro 64bit SP-1; Windows XP Pro 32bit
 
 

I'm changing my answer to pi.

I'm hungry and haven't had breakfast or coffee yet.
My System SpecsSystem Spec
12 May 2011   #34
Arc

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium 64 Bit SP 1
 
 

To me, the answer is 288 (BODMAS).

But if you say it is 17, then I will go for 5.713
My System SpecsSystem Spec
12 May 2011   #35

Windows 8.1 Pro x64
 
 

Quote   Quote: Originally Posted by Arc View Post
To me, the answer is 288 (BODMAS).

But if you say it is 17, then I will go for 5.713
But according to BODMAS:

(9+3)=11
11x2=24
4824= 2
My System SpecsSystem Spec
12 May 2011   #36

Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86
 
 

Quote   Quote: Originally Posted by Dwarf View Post
Quote   Quote: Originally Posted by Bill2 View Post
The correct answers are 2, 288 and 17.
I can see where you can get 2 and 288 from, but can you show how you arrive at 17 ?
Who said 17, me? Must've been a typo.



Sorry Dwarf!
My System SpecsSystem Spec
12 May 2011   #37

Windows 7 Professional 64-bit SP1
 
 

You can also have 288 ... two polls ?

I'm staying out of this
My System SpecsSystem Spec
12 May 2011   #38
Arc

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium 64 Bit SP 1
 
 

Are not we to divide first and then multiply ?
My System SpecsSystem Spec
12 May 2011   #39

MS Windows 8
 
 

Quote   Quote: Originally Posted by Hopalong X View Post
I'm changing my answer to pi.

I'm hungry and haven't had breakfast or coffee yet.
i second to that..

i'll take the square root pie
My System SpecsSystem Spec
12 May 2011   #40

Windows 8.1 Professional x64
 
 

I'm going with 288.

You do brackets first, gives you 12.

And as a few others have said, division and multiplication have no precedence over each other, so you simply work left to right, start with the division to get 24 then finish with the multiplication to get 288.
My System SpecsSystem Spec
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