Settle a dispute?

130.

200/2 = 100 then + 30.

Pretty simple. Divide by half means divide in half, not divide by 0.5 etc.

Half means 0.5

Half doesn't mean 2.

2 is written as Two

Half is written as 1/2 or 0.5

How did you get 2 from Half?

If you are given half a million quid, how much is that in numbers?

The question isn't written as "half of 200, Plus thirty". You would have completely missed the word, divide to get that. Either on purpose or accident, you left that out entirely.
 
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Fully expected the argument between 130 and 430 based on 'divide by half' being interpreted as 'by half' or 'in half' but the answer of 32 based on interpreting as 'by half of itself' I wasn't expecting :p
 
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what does chatgpt say - she's good at maths maybe

‘Hallucinations’ are a critical problem9 for natural language generation systems using large language models (LLMs), such as ChatGPT1 or Gemini2, because users cannot trust that any given output is correct.
 
Divide 200 by half
half of what? a marsbar?

I'd need to determine what measurement your using for the 200 then scale it to a mars bar, cut the mars bar in half, add 30? sprinkles, percent, digits?

What does google say, "you and your mate are nerds and I refuse to settle such a pathetic dispute" ?
 
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Actually, assuming all numbers integers. Then 200/0.5 would give a divide by zero error and the add 30 would be left hanging. What's that? half is obviously meant to interpreted as a floating point number? Where does it say that in the question? :)
 
Actually, assuming all numbers integers. Then 200/0.5 would give a divide by zero error and the add 30 would be left hanging. What's that? half is obviously meant to interpreted as a floating point number? Where does it say that in the question? :)
unless it crashes a calculator then it works perfectly and I've never seen a calculator crash yet
 
it's 430 no doubt. divide by A half would be much better however but then that spoils the "trick" I guess.
unfortunately people are lazy when they talk and come up with their own meaning for things which are factually wrong.


hence I could care less*
I didn't do nothing
and my absolute most hated ...... that is sick!

all meaning the opposite of what people think it means


*I realise that one is a shortened form of a much longer phrase but it's still wrong.
 
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I understand where divide by half would mean 200/100. By half is said in the context of the first number. Guessing half is half of 1 seems more odd to me than halfing a given value.
 
Divide by half
Divide in half

They are different and will get you different answers.

The original question is BY half. If you then apply it as "in" half then you have read it wrong.
Yeah I agree. However 'half' on its own is not grammatically correct either. 'Half' is not a number, it should be 'one half', which is a number.

The whole thing is bobbins.


Anyway, numbers aren't even real so there is no point arguing about it. Numbers are just a manmade construct to help model and understand the universe and everything in it.
 
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Yeah I agree. However 'half' on its own is not grammatically correct either. 'Half' is not a number, it should be 'one half', which is a number.

The whole thing is bobbins.


Anyway, numbers aren't even real so there is no point arguing about it. Numbers are just a manmade construct to help model and understand the universe and everything in it.

We are not really talking grammatically, we are talking about mathematically.

Half in maths is a number. The way it is written, By Half, is by 0.5. Like by a third is by 1/3. Or by a quarter is 1/4.

Your 2nd and 3rd sentences don't belong in this thread, it is a completely different topic.
 
We are not really talking grammatically, we are talking about mathematically.

No, you're talking about grammar. The translation of the words into a mathematical structure is a question of grammar, and the ambiguity comes from that translation. Grammar is descriptive rather than prescriptive, and like the silliness around double negatives the fact is that the most English speakers who might say "divide by half" will have intended the same meaning as "divide by two" or "divide in half"; just as most speakers who might say "I ain't done nothing wrong!" do, in fact, mean they did nothing wrong despite the howlings of prescriptivist grammar mavens.

There is no "right" or "wrong" way to interpret this kind of "maths" problem.
 
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On a vaguely related subject, I always laugh when on the news they say, "Any today the Governor of the Bank of England reduced the base rate by half of one percent". What's wrong with, "That chief bank dude dropped the rate by half a percent".

Actually, I can sort of see why they say half of one percent now, just to avoid the buggeration factor of having to explain it as per this thread :D
 
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No, you're talking about grammar. The translation of the words into a mathematical structure is a question of grammar, and the ambiguity comes from that translation. Grammar is descriptive rather than prescriptive, and like the silliness around double negatives the fact is that the most English speakers who might say "divide by half" will have intended the same meaning as "divide by two" or "divide in half"; just as most speakers who might say "I ain't done nothing wrong!" do, in fact, mean they did nothing wrong despite the howlings of prescriptivist grammar mavens.

There is no "right" or "wrong" way to interpret this kind of "maths" problem.

There is a right and wrong because since this is a maths question, by half and in half are different.

Like a quarter and a third are different numbers.

Like you don't read the word divide and end up with a + (plus).

Yes, this is English Grammar, but the words here are in the context of maths, which each word has specific meaning. Like plenty of words in legal sense means different to a layman. As we are talking about maths, then we need to go in the meaning of the word in the world of maths.
 
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