Jump to content

Welcome to Rune Tips, the first ever RuneScape help site. We aim to offer skill guides, quest guides, maps, calculators, informative databases, tips, and much more to help you get the most from the Massive Online Adventure Game, RuneScape, by Jagex Ltd © 2009.

Report Ad

Welcome to Forum.Tip.It
Register now to gain access to all of our features. Once registered and logged in, you will be able to create topics, post replies to existing threads, give reputation to your fellow members, get your own private messenger, post status updates, manage your profile and so much more. If you already have an account, login here - otherwise create an account for free today!
Photo

48÷2(9+3) = ????


  • Please log in to reply
77 replies to this topic

Poll: 48÷2(9+3) = ???? (125 member(s) have cast votes)

What's the answer?

  1. 2 (25 votes [20.00%] - View)

    Percentage of vote: 20.00%

  2. 4 (4 votes [3.20%] - View)

    Percentage of vote: 3.20%

  3. Voted 288 (81 votes [64.80%] - View)

    Percentage of vote: 64.80%

  4. sec[log(π)√∞^9001]° (15 votes [12.00%] - View)

    Percentage of vote: 12.00%

Vote Guests cannot vote

#41
doomy
[ Display Name History ]

doomy

    Ice Giant Melter

  • Members
  • 3,679 posts
  • Gender:Male
  • Location:NZ bro :P
  • Joined:14 December 2006
  • RuneScape Status:None

Brackets Indices Division Multiplication Addition Subtraction

Hmm, you're right.

EDIT - Talking of trollmath, could someone explain why this doesn't work?

Posted Image

I'm not sure if this is right or not, but the second last line is pretty much saying 2*0 = 1*0, and the last step is dividing 0 out from both sides?

Doomy edit: I like sheep


#42
Assume Nothing
[ Display Name History ]

Assume Nothing

    Ice Giant Melter

  • Members
  • 4,191 posts
  • Gender:Male
  • Location:Places.
  • Joined:23 November 2008
  • RuneScape Status:Semi-Retired


Brackets Indices Division Multiplication Addition Subtraction

Hmm, you're right.

EDIT - Talking of trollmath, could someone explain why this doesn't work?

Posted Image

I'm not sure if this is right or not, but the second last line is pretty much saying 2*0 = 1*0, and the last step is dividing 0 out from both sides?


Ah, there we go. I just followed what they did and didn't spot that because x = a, x - a = 0

#43
Juhnie
[ Display Name History ]

Juhnie

    Retired Crew

  • Members
  • 1,437 posts
The reason people are getting 2 as the answer from their calculators is in the way the calculator processes the problem. It seems to cut the syntax in terms which it will process one by one in the order of operations. DISCLAIMER: Just something I thought up. Nothing official or such :P

If you write in 48/2(9+3), some calculators will understand the 2(9+3) a single term with parentheses, ranking the whole term top tier in the order of operations (due to the precense of parentheses) and processes it like this:

48/2(9+3)
48/2(12)
48/24
2

before moving on with the calculation. If you write in 48/2*(9+3), however, the calculator separates the (9+3) as a separate term and processes it like this to remove the parentheses:

48/2*(9+3)
48/2*12
24*12
288

I tried this out with my Casio CFX-9850GB PLUS. The result:

48/2(9+3) = 2
48/2*(9+3) = 288

Agree with Will_H, the syntax is horrible.
Master of Attack ~ August 29th, 2010
Proud to have served the awesome Tip.It Crew <3





#44
dsavi
[ Display Name History ]

dsavi

    Dragon Slayer

  • Members
  • 6,868 posts
  • Joined:30 July 2006
Interesting, I tried it on some different calculators and got different answers:

My desktop calculator (gnome-calculator): 2 Edit: When I typed in 48/2*(9+3) it was 288.
PHP ( print 48/2*(9+3); ): 288
Python ( print(48/2*(9+3)) ): 288
C: 288
(Program)


I would assume that the calculator would be more reliable, seeing as it's, you know, a calculator. But apparently not.

C2b6gs7.png


#45
Orpheus
[ Display Name History ]

Orpheus

    Ice Giant Melter

  • Members
  • 4,783 posts
  • Gender:Male
  • Location:United Stat -TROMBE!
  • Joined:24 August 2006
  • RuneScape Status:None
In any case, this problem is not clear enough in terms of what's going with what, even with BIDMAS, PEMDAS, GEMA (what the [bleep] is this). It's not clearly defined how to do this problem correctly. It's still 288 unless brackets/more parentheses say otherwise.


I was going to eat hot dogs for dinner tonight. I think I will settle for cereal.


OPEN WIDE HERE COMES THE HELICOPTER.


#46
Riku3220
[ Display Name History ]

Riku3220

    Dragon Slayer

  • Members
  • 7,800 posts
  • Gender:Male
  • Joined:26 February 2006
  • RuneScape Status:None

In any case, this problem is not clear enough in terms of what's going with what, even with BIDMAS, PEMDAS, GEMA (what the [bleep] is this). It's not clearly defined how to do this problem correctly. It's still 288 unless brackets/more parentheses say otherwise.

GEMA is:

Grouping
Exponents
Multiplication and division
Addition and subtraction
Posted Image

#47
iamcoool11
[ Display Name History ]

iamcoool11

    Goblin Armour

  • Members
  • 76 posts
  • Gender:Not Telling
  • Joined:16 February 2009
  • RuneScape Status:None
This is how I see it:
My solution

At least I think it's right...
I'm pretty sure that the distributive property ignores PEMDAS, and comes before it. :???:
Edit: If I am wrong, feel free to correct me.
Posted Image

#48
The Observer
[ Display Name History ]

The Observer

    Lead the charge

  • SwiftKit Staff
  • 12,959 posts
  • Gender:Male
  • Location:Taking your clan to greaters
  • Joined:3 December 2005
  • RuneScape Status:Retired
I got 288 using the order of operations.

j0xPu5R.png


#49
Hamtaro
[ Display Name History ]

Hamtaro

    Skeleton Shield

  • Editorial Panel
  • 1,174 posts
  • Gender:Male
  • Location:East Lansing, Michigan, USA / World 64
  • Joined:17 February 2009
  • RuneScape Status:P2P
  • RSN:Hamtaro
  • Clan:HamChiP3ace

This is how I see it:

My solution

At least I think it's right...
I'm pretty sure that the distributive property ignores PEMDAS, and comes before it. :???:
Edit: If I am wrong, feel free to correct me.

Distributive property doesn't take precedence in a monomial equation. Because there are no X-terms, the entire equation is one term. The answer is in spoiler tags in the first post btw.
Player since 2004. All skills 1M+ XP.
Posted Image
"If it were possible to cure evils by lamentation..., then gold would be a less valuable thing than weeping." - Sophocles
"Good people do not need laws to tell them to act responsibly, while bad people will find a way around the laws." - Plato

#50
iamcoool11
[ Display Name History ]

iamcoool11

    Goblin Armour

  • Members
  • 76 posts
  • Gender:Not Telling
  • Joined:16 February 2009
  • RuneScape Status:None


This is how I see it:

My solution

At least I think it's right...
I'm pretty sure that the distributive property ignores PEMDAS, and comes before it. :???:
Edit: If I am wrong, feel free to correct me.

Distributive property doesn't take precedence in a monomial equation. Because there are no X-terms, the entire equation is one term. The answer is in spoiler tags in the first post btw.

I'm still confused. I learned it as always being first. I don't know, I'm just not quite getting it. :oops:
Posted Image

#51
K4ylan
[ Display Name History ]

K4ylan

    Moss Giant Whipper

  • Members
  • 2,924 posts
  • Gender:Male
  • Location:California
  • Joined:27 December 2009
  • RuneScape Status:F2P
  • RSN:Harpy Priest
  • Clan:Harpies



This is how I see it:

My solution

At least I think it's right...
I'm pretty sure that the distributive property ignores PEMDAS, and comes before it. :???:
Edit: If I am wrong, feel free to correct me.

Distributive property doesn't take precedence in a monomial equation. Because there are no X-terms, the entire equation is one term. The answer is in spoiler tags in the first post btw.

I'm still confused. I learned it as always being first. I don't know, I'm just not quite getting it. :oops:


Think of the parenthesis as a multiplication sign. So, it would be 48/2×12 --> 24×12 --> 288

#52
xSxqPowerx
[ Display Name History ]

xSxqPowerx

    Black Knight Trainer

  • Members
  • 3,043 posts
  • Location:Hiding.
  • Joined:16 August 2006
It's deliberately confusing.
Really should be another pair or brackets indicating whether the (9+3) is on the top or the bottom of the equation. However, yes, when it's written out like this going left to right is the correct approach.

#53
Orpheus
[ Display Name History ]

Orpheus

    Ice Giant Melter

  • Members
  • 4,783 posts
  • Gender:Male
  • Location:United Stat -TROMBE!
  • Joined:24 August 2006
  • RuneScape Status:None


In any case, this problem is not clear enough in terms of what's going with what, even with BIDMAS, PEMDAS, GEMA (what the [bleep] is this). It's not clearly defined how to do this problem correctly. It's still 288 unless brackets/more parentheses say otherwise.

GEMA is:

Grouping
Exponents
Multiplication and division
Addition and subtraction


Ah. Never heard of that.


I was going to eat hot dogs for dinner tonight. I think I will settle for cereal.


OPEN WIDE HERE COMES THE HELICOPTER.


#54
justcallmedaddy
[ Display Name History ]

justcallmedaddy

    Varrock Guard

  • Members
  • 1,342 posts
  • Gender:Not Telling
  • Joined:24 December 2006
  • RuneScape Status:None
This is a 7th grade Pre-Algebra problem.....psh.

#55
Giordano
[ Display Name History ]

Giordano

    Troll General

  • Members
  • 11,438 posts
  • Gender:Male
  • Location:Fontana, California
  • Joined:18 December 2005
  • RuneScape Status:Retired
  • RSN:Pasta Cheif
  • Clan:Chef Films
It doesn't even matter whether you use PEMDAS, BIDMAS, GAMA, PETA, or whatever, it's all the same thing.

There's enough information to solve the problem. It may not be in the correct usage/form, but "How are you?" and "h0w r u?" both are understandable.
"The cry of the poor is not always just, but if you never hear it you'll never know what justice is."
Posted Image

#56
Magbill
[ Display Name History ]

Magbill

    Unicorn Horn

  • Members
  • 207 posts
  • Gender:Male
  • Joined:8 September 2010
  • RuneScape Status:P2P
  • RSN:I fart V2
Got 288 using BODMAS, pretty easy stuff.

#57
Leyenda
[ Display Name History ]

Leyenda

    Bear Fur

  • Members
  • 259 posts
  • Gender:Male
  • Location:USA
  • Joined:10 April 2010
  • RuneScape Status:P2P
  • RSN:Szeryng
is this thread serious? did your professor laugh when you asked him this question?
All skills 70+

Trails: 2 x Rune platebody (g)
Barrows: 1 x Dharok's legs
Drops: 1 x Dragon skirt | 1 x Dragon defender

#58
Hamtaro
[ Display Name History ]

Hamtaro

    Skeleton Shield

  • Editorial Panel
  • 1,174 posts
  • Gender:Male
  • Location:East Lansing, Michigan, USA / World 64
  • Joined:17 February 2009
  • RuneScape Status:P2P
  • RSN:Hamtaro
  • Clan:HamChiP3ace
^No, but I laughed when you couldn't read the first post.
Player since 2004. All skills 1M+ XP.
Posted Image
"If it were possible to cure evils by lamentation..., then gold would be a less valuable thing than weeping." - Sophocles
"Good people do not need laws to tell them to act responsibly, while bad people will find a way around the laws." - Plato

#59
Vulxai
[ Display Name History ]

Vulxai

    Mitákuye Oyás’iŋ

  • Members
  • 5,959 posts
  • Gender:Male
  • Location:Help and Advice boards
  • Joined:11 September 2006
  • RuneScape Status:Semi-Retired
  • RSN:Wise Pond
  • RSN '07:Vulxai
I really don't see how anyone who has passed basic algebra doesn't get 288...

~ Proud Father ~ Proud (Currently Deployed) Army National Guardsmen ~ Proud Lakota ~ Retired Tip.It Crew ~
 


#60
Will H
[ Display Name History ]

Will H

    Tea Connoisseur

  • Members
  • 5,195 posts
  • Gender:Male
  • Location:Blighty
  • Joined:13 August 2006
  • RuneScape Status:P2P
  • RSN:Will Holmes
  • Clan:Clay Gods

It doesn't even matter whether you use PEMDAS, BIDMAS, GAMA, PETA, or whatever, it's all the same thing.

There's enough information to solve the problem. It may not be in the correct usage/form, but "How are you?" and "h0w r u?" both are understandable.


Mathematics is strictly a logical system of numbers and symbols, there is a right and a wrong way of doing it. If it's ambiguous, it's wrong. Written/spoken languages only use a logical system as a guideline, you are allowed to use creative and ambiguous derivatives to get across subtleties. They are not the same.

There needs to be another bracket to clarify, or the question needs to be fully displayed to show where the (9+3) lies relative to the division line. It's not too much to ask for.

~ W ~


Posted Image





0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users