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Author Topic: challenge  (Read 932 times)

russell17au

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challenge
« on: February 01, 2018, 03:04:08 PM »
Ok, gentlemen and others, there seem to be some reasonably intelligent people on here so I am throwing you a challenge, it is a simple maths question.
I am running a dog show and there are 49 dogs signed up to compete in the dog show.

There are 36 more small dogs than large dogs signed up to compete.

How many small dogs are signed up to compete?



screamer

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Re: challenge
« Reply #1 on: February 01, 2018, 03:44:20 PM »
Is there a category for half dogs?

Rex (Admin)

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Re: challenge
« Reply #2 on: February 01, 2018, 04:32:12 PM »
Dunno, but clearly 85 is a devilish trap!


So it must either be a silly, gag anwer . . . or demonstrating some "hiccup" most people's brains do when processing this kind of math problem, such as



TerryLH

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Re: challenge
« Reply #3 on: February 01, 2018, 06:03:40 PM »
"...so I am throwing you a challenge..."

OP, are you trying to take credit for this? 

russell17au

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Re: challenge
« Reply #4 on: February 01, 2018, 06:16:11 PM »
No Terry, I am not trying to take credit for this but I am interested in what some of the answers will be, even yours

Savannah20

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Re: challenge
« Reply #5 on: February 02, 2018, 08:53:21 AM »
All of them.

mrpunch

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Re: challenge
« Reply #6 on: February 02, 2018, 06:33:59 PM »
Is there a category for half dogs?


Apparently, there should be.  I spent a few minutes with an Excel spreadsheet to check all the possible cominations of big and small dogs to get a total of 49 before deciding that the answer was impossible.


Then I found this:


https://www.thesun.co.uk/fabulous/5470893/maths-homework-dog-show-year-2/
« Last Edit: February 02, 2018, 06:53:37 PM by Rex (Admin) »
Is my identity my own?
Why does anybody feel the need to f**k with it??

martin

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Re: challenge
« Reply #7 on: February 02, 2018, 07:14:34 PM »
If 'a' = number of big dogs then 'a+36' = number of small dogs.


a+(a+36) = 49


2a = 13


a=6 1/2 big dogs >>> 42 1/2 small dogs.


The show should have been shut down and the organisers prosecuted for cruelty to animals. But no cruelty at all involved if they'd allowed 50 dogs to enter.


And this whole 'Challenge' thread is based on a mistake in the wording of the question by whoever set the child's homework!!
« Last Edit: February 02, 2018, 07:19:20 PM by martin »

russell17au

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Re: challenge
« Reply #8 on: February 02, 2018, 09:21:42 PM »
It is interesting that only 1 person (martin) actually worked it out and (mrpunch) tried and then he found it on the internet. This was a mathematical question that was used for a year 2 homework in the UK

stevve

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Re: challenge
« Reply #9 on: February 03, 2018, 10:18:11 AM »
as it is a question for 7 year olds I think they made a mistake and should of asked how may large dogs.

Rex (Admin)

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Re: challenge
« Reply #10 on: February 04, 2018, 04:32:10 PM »
I didn't get it either, but admittedly my mind doesn't do very well with this kind of stuff.  Part of the problem, I think, is that if the word
"more" does not immediately suggest that it is the number of small dogs PLUS the number of large dogs, you end up chasing your tail around (as dogs often do).

mrpunch

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Re: challenge
« Reply #11 on: February 05, 2018, 08:51:10 AM »
It is interesting that only 1 person (martin) actually worked it out and (mrpunch) tried and then he found it on the internet. This was a mathematical question that was used for a year 2 homework in the UK


I DID actually work it out that it was impossible through an empirical method rather than a formulaic analysis..........
Is my identity my own?
Why does anybody feel the need to f**k with it??

Rex (Admin)

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Re: challenge
« Reply #12 on: February 05, 2018, 09:12:42 AM »
Did anybody try the Keith Barry "trick"?  Could you explain it?





russell17au

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Re: challenge
« Reply #13 on: February 09, 2018, 09:59:48 AM »
What happens Rex is that when he says 5000 your eyes see 5000 written on the newspaper and with the two it registers in your brain as 5000.
Both sound and sight can be deceptive with the message that they send to the brain

Rex (Admin)

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Re: challenge
« Reply #14 on: February 09, 2018, 04:36:24 PM »
Actually, it works with or without seeing 5,000. Because of his persona as a hypnotist-mind reader-magician, Keith wants you to believe that he can mess with your head.


It is just due to some "brain confusion" that apparently many people are susceptible to for reasons we may not be able to explain.  I kept getting the same total until I stopped and started the video, and wrote down all the numbers and then totaled them on a calculator.


It is a very impressive trick and probably works even when you know it is a trick.