Brain Teaser and a request of all of you: - Printable Version
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Brain Teaser and a request of all of you: - Hulk01 - 12-11-2013
Off topic but I wanted to poll a group of inteligent people.Â
Some guy Linked In today with this question. He wrote that 99.9% of people answer it incorrectly.Â
Without providing your answer yet for others to read, how many of you feel confident that you know the correct answer to the following?â¨
[i]If 3 = 18,
4 = 32,
5 = 50,
6 = 72,
and 7 = 98,
then 10 equals what?[/i]
Thanks very much for weighing in.Â
Re: Brain Teaser and a request of all of you: - stupac2 - 12-11-2013
I'm pretty confident that I have A right answer, but if 99.9% of people (I'm sure that statistic is valid and not completely made up) get it wrong, then I'm also pretty confident that there's some other trick going on.
Re: Brain Teaser and a request of all of you: - TreeFitty - 12-11-2013
I have an answer I'm confident in.
EDIT: also, im in the stupak camp. my answer is probably wrong.
Re: Brain Teaser and a request of all of you: - GoodGrief - 12-11-2013
I'm 100% confident that I have an answer that is mathematically consistent with the given examples. Of course there may be some trick or other correct examples.
Re: Brain Teaser and a request of all of you: - 82 Card - 12-11-2013
Seems too easy for 99.9% to get wrong, unless there's a trick or they were surveying at SC.
Re: Brain Teaser and a request of all of you: - Leftcoast - 12-11-2013
A clear pattern emerges that fits all the examples.Â
Re: Brain Teaser and a request of all of you: - Langdude - 12-11-2013
I have an answer that would fit with the progression. Not sure how it would not be the "right" answer.
-m.
Re: Brain Teaser and a request of all of you: - ahuang06 - 12-11-2013
Feel 99.9% confident about having an answer. :)
Re: Brain Teaser and a request of all of you: - washingtonismoney - 12-11-2013
I, too, have an answer. Unlike my compatriots, I am unburdened by the fear of being wrong in public. (I am a journalist.) My guess is: 160.
Re: Brain Teaser and a request of all of you: - Embo - 12-11-2013
WIM, you missed it because of a trick. The response is what follows 10, not 8 (which your answer would respond to.)
Hulk, I am so confident that my next reply would be, "Hulk, I will take Brain Teasers for $1600".
Re: Brain Teaser and a request of all of you: - Greyhound - 12-11-2013
The pattern seems too readily apparent for 99.9% of people to get the answer wrong, so I'm questioning my answer but I do feel pretty solid with it. I will say it is different than WIM's answer, so I'm not sure which one of us that puts outside the 99%.
Re: Brain Teaser and a request of all of you: - washingtonismoney - 12-11-2013
Of course, given the number of potential "correct" answers it may be most correct to say there's no one correct answer, as there's insufficient evidence to conclude whether mick's pattern or my (very simple multiplication) pattern is correct.
Re: Brain Teaser and a request of all of you: - OutsiderFan - 12-11-2013
Wouldn't any answer require making too many assumptions to possibly be correct?
Re: Brain Teaser and a request of all of you: - stupac2 - 12-11-2013
(12-11-2013, 12:54 PM)Embo link Wrote:WIM, you missed it because of a trick. The response is what follows 10, not 8 (which your answer would respond to.)
Hulk, I am so confident that my next reply would be, "Hulk, I will take Brain Teasers for $1600".
That's not what I would get for 8. I would get 128.
Re: Brain Teaser and a request of all of you: - 2 for 2028 - 12-11-2013
(12-11-2013, 01:02 PM)stupac2 link Wrote:[quote author=Embo link=topic=9116.msg77853#msg77853 date=1386791682]WIM, you missed it because of a trick. The response is what follows 10, not 8 (which your answer would respond to.)
Hulk, I am so confident that my next reply would be, "Hulk, I will take Brain Teasers for $1600".
That's not what I would get for 8. I would get 128.
[/quote]
Same here. I was just going to write that a bigger teaser is to figure out how people are coming up 8 = 160.Â
Re: Brain Teaser and a request of all of you: - shinsengumi - 12-11-2013
The answer seems a little too easy. So, there's probably a trick.
If you hadn't mentioned that most people get this wrong, I would be 100% certain of my answer.
Re: Brain Teaser and a request of all of you: - TreeFitty - 12-11-2013
(12-11-2013, 01:02 PM)stupac2 link Wrote:[quote author=Embo link=topic=9116.msg77853#msg77853 date=1386791682]WIM, you missed it because of a trick. The response is what follows 10, not 8 (which your answer would respond to.)
Hulk, I am so confident that my next reply would be, "Hulk, I will take Brain Teasers for $1600".
That's not what I would get for 8. I would get 128.
[/quote]
Same here.
My guess is there's multiple answers, but that you would only really know for sure theres multiple answers if you're a PhD in super nerd math.
Re: Brain Teaser and a request of all of you: - Embo - 12-11-2013
stupac2, I agree with your answer for 8. In my haste, I calculated the variable that 10 would be multiplied by to get the answer, and saw that WIM had multiplied 8, not 10, by the variable that should be assigned to 10.
Part of me is surprised that 99.9% have gotten this incorrect. Then again, it depends who was surveyed. You can never underestimate the average intelligence of the American public. As an example, I have always made it a point to know the names of all nine members of the US Supreme Court. Why? I read this article, in the 80's, that when a random group of US citizens were asked to name the Chief Justice, the majority answer was, no lie, Joseph Wapner (of the People's Court at that time.)
Re: Brain Teaser and a request of all of you: - BigEasyCard - 12-11-2013
Pretty sure I have a correct answer for 10. Hulk, maybe you can set up a poll which includes the correct answer?
Geaux Cardinal!
spoiler - CompSci87 - 12-11-2013
Yes, the pattern looks to be n = 2n[sup]2[/sup], so the answer is 10 = 200.