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Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2006
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Have you seen this on the web? Can you solve it? 8÷2(2+2)=?
“In a time of deceit telling the truth is a revolutionary act.”
― George Orwell
It's not over when you lose. It's over when you quit.
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Campfire Kahuna
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Campfire Kahuna
Joined: May 2011
Posts: 56,236 |
_______________________________________________________
An 8 dollar driveway boy living in a T-111 shack
LOL
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Joined: Dec 2007
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Campfire Outfitter
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Campfire Outfitter
Joined: Dec 2007
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Yeah, its a trick question it depends on what system of hierarchy of the operations that you use. The answer is either 1 or 16 (PEMDAS or BODMAS respectively).
Ed
A person who asks a question is a fool for 5 minutes the person who never asks is a fool forever.
The worst slaves are those that put the chains on themselves.
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Campfire Outfitter
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Campfire Outfitter
Joined: Aug 2011
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l told my pap and mam I was going to be a mountain man; acted like they was gut-shot. Make your life go here. Here's where the peoples is. Mother Gue, I says, the Rocky Mountains is the marrow of the world, and by God, I was right.
- Del Gue
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Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2006
Posts: 69,219 |
The problem is written incorrectly and is ambiguous. Both 1 and 16 can be correct.
“In a time of deceit telling the truth is a revolutionary act.”
― George Orwell
It's not over when you lose. It's over when you quit.
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Posts: 10,258
Campfire Outfitter
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Campfire Outfitter
Joined: Dec 2007
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Correct, the use of the division symbol (÷) is discouraged for this reason.
Ed
A person who asks a question is a fool for 5 minutes the person who never asks is a fool forever.
The worst slaves are those that put the chains on themselves.
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Joined: May 2005
Posts: 16,554
Campfire Ranger
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Campfire Ranger
Joined: May 2005
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8 / 2 * (2 + 2)
Parentheses first so resolves to
8 / 2 * 4
Preliminary work done, now start over
Division and multiplication are of equal precedence so evaluate left to right
8 / 2 = 4
4 * 4 = 16
The key elements in human thinking are not numbers but labels of fuzzy sets. -- L. Zadeh
Which explains a lot.
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Campfire Ranger
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Campfire Ranger
Joined: May 2005
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The key elements in human thinking are not numbers but labels of fuzzy sets. -- L. Zadeh
Which explains a lot.
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Joined: May 2003
Posts: 16,968
Campfire Ranger
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Campfire Ranger
Joined: May 2003
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PEDMAS Means you do parentheses first (P) Exponents next (E) .... BUT what they don’t always say is you do all your Multiplication and Division at the same time “LEFT TO RIGHT”.... Which means it’s = 8/2(2+2) Converts to 8/2*4... which is done strictly left to right... OR. 4*4 =16 So there is only one correct answer. 
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Campfire Ranger
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Campfire Ranger
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PEDMAS - if only it was that simple. In C programming language: ![[Linked Image]](https://4.bp.blogspot.com/-RTANrXQEtaI/Ty0UX_BdlxI/AAAAAAAAABM/1t8EBkHEARo/s1600/untitled_thumb.png) So I use parentheses freely, helps keep you sane.
The key elements in human thinking are not numbers but labels of fuzzy sets. -- L. Zadeh
Which explains a lot.
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Joined: May 2005
Posts: 16,554
Campfire Ranger
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Campfire Ranger
Joined: May 2005
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Oh I see, the expression isn't ambiguous, people don't understand the mnemonics.
The key elements in human thinking are not numbers but labels of fuzzy sets. -- L. Zadeh
Which explains a lot.
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Posts: 69,219
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2006
Posts: 69,219 |
Here's the foxnews article the question came from: MATH PROBLEM
“In a time of deceit telling the truth is a revolutionary act.”
― George Orwell
It's not over when you lose. It's over when you quit.
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Campfire Kahuna
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Campfire Kahuna
Joined: Sep 2011
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You folks are much smarter than I, well, yes just that.
These premises insured by a Sheltie in Training ,--- and Cooey.o
"May the Good Lord take a likin' to you"
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Campfire Sage
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Campfire Sage
Joined: Jun 2002
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Have you seen this on the web? Can you solve it? 8÷2(2+2)=? Answer is 16, because I remember that you need to Please Excuse My Dear Aunt Sally.
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Campfire Ranger
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Campfire Ranger
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It’s a common mistake to keep working from where the paran’s where but that means working “right to left” vs. left to right... (and that is arse backwards).. and results in a wrong answer.
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Sep 2010
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Fugg 16, the answer is 1!
"I can't be canceled, because, I don't give a fuuck!"
--- Kid Rock 2022
Holocaust Deniers, the ultimate perverted dipchits: Bristoe, TheRealHawkeye, stophel, Ghostinthemachine, anyone else?
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Campfire Tracker
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Campfire Tracker
Joined: Jan 2009
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Fugg 16, the answer is 1! I only see 16, don’t know how you get to 1.
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Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2006
Posts: 69,219 |
Here's one of the comments from the article:
8÷2X(2+2) = 16
8÷2(2+2) = 1
Final answer.
People who are poor in math will add that multiplication sign in their delusional minds and then follow PODMAS to come up with 16
People who are proficient in math will not add that multiplication sign and still follow PODMAS exactly and come up with 1.
“In a time of deceit telling the truth is a revolutionary act.”
― George Orwell
It's not over when you lose. It's over when you quit.
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Joined: Jan 2006
Posts: 69,219
Campfire Kahuna
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OP
Campfire Kahuna
Joined: Jan 2006
Posts: 69,219 |
To get 1, you have to add a set of parentheses: 8÷(2(2+2)) = 1
“In a time of deceit telling the truth is a revolutionary act.”
― George Orwell
It's not over when you lose. It's over when you quit.
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Posts: 4,840
Campfire Tracker
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Campfire Tracker
Joined: Apr 2011
Posts: 4,840 |
Didn't study for a pop quiz this morning. I thought the always correct answer was 6.5
For even when we were with you, we gave you this rule: "If a man will not work, he shall not eat."
2 Thessalonians 3:10
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