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Old 12th-October-2017, 01:08 PM   #1
Creeping Death
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Default Cognitive Reflection Test

Questions:

1. A bat and a ball cost $1.10 in total. The bat costs $1 more than the ball. How much does the ball cost?

2. If it takes 5 machines 5 minutes to make 5 widgets, how long would it take 100 machines to make 100 widgets?

3. In a lake, there is a patch of lily pads. Every day, the patch doubles in size. If it takes 48 days for the patch to cover the entire lake, how long would it take for the patch to cover half of the lake?




Just give me your answers, I don't care. It's like supposed to be the world's shortest IQ test or something. Supposedly most people who answer 1 wrong are just impatient assholes. I'm an impatient asshole, my first answer was wrong, but then I slowed the fuck down (not too much) and got it right.
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Old 12th-October-2017, 01:15 PM   #2
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Default Re: Cognitive Reflection Test

I could not be bothered with these types of questions. I prefer life riddles to math riddles.
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Old 12th-October-2017, 02:33 PM   #3
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Default Re: Cognitive Reflection Test

Spoiler:

1 - ball = $0.05, bat = $1.05
2 - five minutes
3 - 47 days

It's not an IQ test. It's an attention/comprehension test, trying to mislead your intuition.
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Old 12th-October-2017, 09:17 PM   #4
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Default Re: Cognitive Reflection Test

Hadoblado took all my answers but we still do not know the question.
(How cognitively Reflective are you?)
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Old 12th-October-2017, 10:14 PM   #5
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Default Re: Cognitive Reflection Test

1 is kind of interesting. I wonder what sort of mental representation of quantities one should have in order to automatically jump to the right answer. If anyone has that, I would be curious to hear about it
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Old 13th-October-2017, 02:25 AM   #6
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Default Re: Cognitive Reflection Test

Spoiler:

Bat = B
Ball = A

B + A = 1.10
B = A + 1

therefore
(A + 1) + A = 1.10 [solve for A]

yeah my brain wants to say 0.10 but the math says something else. Why is that?
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Old 13th-October-2017, 03:05 AM   #7
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Default Re: Cognitive Reflection Test

All three questions are talked in Think Fast and Slow. I did first wrong. Did any of you managed to finish this book? It get more boring with every page. I stuck on 116 or smth for month.
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