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The Number of the Day: $20

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Former Pittsburgh Steelers coach Ray Horton recently sold his red 1999 Mercedes SL500 convertible to a Steelers cafeteria worker named Maurice Matthews for all the money Matthews had in his pocket at the time: $20.

"Ray said, 'Hey, you always liked the car, you're a good dude, I know you'll take care of it,'" Matthews told the Pittsburgh Post-Gazette.

Related Fact: The $20 purchase price amounts to roughly 1/887th of the car’s estimated value of $17,735.

[Source: Yahoo Sports. See previous Numbers of the Day here. ]

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This Puzzling Math Brain Teaser Has a Simple Solution
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Fans of number-based brainteasers might find themselves pleasantly stumped by the following question, posed by TED-Ed’s Alex Gendler: Which sequence of integers comes next?

1, 11, 21, 1211, 111221, ?

Mathematicians may recognize this pattern as a specific type of number sequence—called a “look-and-say sequence"—that yields a distinct pattern. As for those who aren't number enthusiasts, they should try reading the numbers they see aloud (so that 1 becomes "one one," 11 is "two ones," 21 is "one two, one one,” and so on) to figure the answer.

Still can’t crack the code? Learn the surprisingly simple secret to solving the sequence by watching the video below.

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What Number Is The Answer?
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