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20 Questions Type Puzzel

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20 Questions Type Puzzel
TheRealJoeFish Offline
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#41
RE: 20 Questions Type Puzzel
January 21, 2015 at 12:36 am
I've got 'em, but I've already answered one question so I'll hold my tongue ;-)
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GrandizerII Offline
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#42
RE: 20 Questions Type Puzzel
January 21, 2015 at 12:46 am (This post was last modified: January 21, 2015 at 12:47 am by GrandizerII.)
I found one of the solutions now. Going for the second solution.
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Aoi Magi Offline
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#43
RE: 20 Questions Type Puzzel
January 21, 2015 at 2:15 am
1*2, 2*3, 3*5, 5*7, 7*11, ... ?? prime multiplication?
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GrandizerII Offline
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#44
RE: 20 Questions Type Puzzel
January 21, 2015 at 2:36 am
(January 21, 2015 at 2:15 am)Aoi Magi Wrote: 1*2, 2*3, 3*5, 5*7, 7*11, ... ?? prime multiplication?

Yep, that's the pattern I figured out. Answer: 143

Still not sure about the other pattern. Factorials maybe?
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IATIA Offline
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#45
RE: 20 Questions Type Puzzel
January 21, 2015 at 8:44 pm
Halfway there.
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Angrboda Offline
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#46
RE: 20 Questions Type Puzzel
January 21, 2015 at 9:40 pm (This post was last modified: January 21, 2015 at 9:41 pm by Angrboda.)
(January 20, 2015 at 12:42 am)Jenny A Wrote: See Exian's answer above. The answer is that each number is larger than the last. Usually it takes people quite a while to get the answer because it is too simple.

Quote:Wason's research on hypothesis-testing

The term "confirmation bias" was coined by English psychologist Peter Wason. For an experiment published in 1960, he challenged participants to identify a rule applying to triples of numbers. At the outset, they were told that (2,4,6) fits the rule. Participants could generate their own triples and the experimenter told them whether or not each triple conformed to the rule.

While the actual rule was simply "any ascending sequence", the participants had a great deal of difficulty in finding it, often announcing rules that were far more specific, such as "the middle number is the average of the first and last". The participants seemed to test only positive examples — triples that obeyed their hypothesized rule. For example, if they thought the rule was, "Each number is two greater than its predecessor", they would offer a triple that fit this rule, such as (11,13,15) rather than a triple that violates it, such as (11,12,19).

Wason accepted falsificationism, according to which a scientific test of a hypothesis is a serious attempt to falsify it. He interpreted his results as showing a preference for confirmation over falsification, hence the term "confirmation bias".

Wikipedia | Confirmation Bias
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IATIA Offline
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#47
RE: 20 Questions Type Puzzel
January 21, 2015 at 10:26 pm
Also, as in this case with dual answers, though the second answer is just as easy as the first, the distraction of the first answer makes the second seem difficult.
You make people miserable and there's nothing they can do about it, just like god.
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God has no place within these walls, just as facts have no place within organized religion.
-- Superintendent Chalmers

Science is like a blabbermouth who ruins a movie by telling you how it ends. There are some things we don't want to know. Important things.
-- Ned Flanders

Once something's been approved by the government, it's no longer immoral.
-- The Rev Lovejoy
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Jenny A Offline
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#48
RE: 20 Questions Type Puzzel
January 21, 2015 at 11:20 pm
(January 21, 2015 at 12:03 am)IATIA Wrote: This one has two solutions.

2, 6, 15, 35, 77

You say the second solution is easy. Maybe I found a third:

2, 6, 15, 35, 77, 165, 516

The intervals between the numbers are ascending primes times alternating ascending powers of 2 and 3.

6-2=4=2x2
15-6=9=3x3
35-15=20=5x2x2
77-35=42=7x3x3
165-77=88=11x2x2x2
516-165=351=13x3x3x3
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IATIA Offline
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#49
RE: 20 Questions Type Puzzel
January 22, 2015 at 12:18 am (This post was last modified: January 22, 2015 at 12:21 am by IATIA.)
Interesting, but the first 2 does not really fit in.

Primes are funny.
You make people miserable and there's nothing they can do about it, just like god.
-- Homer Simpson

God has no place within these walls, just as facts have no place within organized religion.
-- Superintendent Chalmers

Science is like a blabbermouth who ruins a movie by telling you how it ends. There are some things we don't want to know. Important things.
-- Ned Flanders

Once something's been approved by the government, it's no longer immoral.
-- The Rev Lovejoy
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Losty Offline
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#50
RE: 20 Questions Type Puzzel
January 22, 2015 at 12:27 am (This post was last modified: January 22, 2015 at 12:28 am by Losty.)
15, 17, 21, 25, 27?


ETA this was @OP. Didn't realize there were 5 pages lol
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20 Questions Type Puzzel

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