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	<updated>2026-04-26T22:18:56Z</updated>
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	<entry>
		<id>https://perplexcitywiki.com/w/index.php?title=Firebox_Card:_Number_123&amp;diff=3443</id>
		<title>Firebox Card: Number 123</title>
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		<updated>2005-05-10T00:14:49Z</updated>

		<summary type="html">&lt;p&gt;ConcreteEnema: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&#039;&#039;&#039;Illogical&#039;&#039;&#039;&lt;br /&gt;
&lt;br /&gt;
From the firebox advert. The card on the top of the advert contains the following text:&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Between all the distractions and parties at university, I did manage to fit in a few &lt;br /&gt;
experimental psychology lectures. One of the most interesting things I learned was how &lt;br /&gt;
at heart, people aren&#039;t as logical as they think. Try this problem: &lt;br /&gt;
&lt;br /&gt;
Each of these cards has a letter (A or K) on one side and a number (2 or 7) on the reverse. &lt;br /&gt;
If I told you there was a rule stating that a card with A on one side will have a 2 on the &lt;br /&gt;
reverse, which two cards would you turn over to find out if the rule was true?&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The cards displayed on the card are&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
A K 2 7&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The answer is A and 7. [[image:green_123.jpg|thumb|Pack of Cards]]&lt;/div&gt;</summary>
		<author><name>ConcreteEnema</name></author>
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