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  2. Missing dollar riddle - Wikipedia

    en.wikipedia.org/wiki/Missing_dollar_riddle

    There seems to be a discrepancy, as there cannot be two answers ($29 and $30) to the math problem. On the one hand it is true that the $25 in the register, the $3 returned to the guests, and the $2 kept by the bellhop add up to $30, but on the other hand, the $27 paid by the guests and the $2 kept by the bellhop add up to only $29.

  3. Glossary of mathematical jargon - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_mathematical...

    In applied fields the word "tight" is often used with the same meaning. [2] smooth Smoothness is a concept which mathematics has endowed with many meanings, from simple differentiability to infinite differentiability to analyticity, and still others which are more complicated. Each such usage attempts to invoke the physically intuitive notion ...

  4. List of unsolved problems in mathematics - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    Characterise word-representable near-triangulations containing the complete graph K 4 (such a characterisation is known for K 4-free planar graphs [130]) Classify graphs with representation number 3, that is, graphs that can be represented using 3 copies of each letter, but cannot be represented using 2 copies of each letter [ 131 ]

  5. 10 Hard Math Problems That Even the Smartest People in the ...

    www.aol.com/10-hard-math-problems-even-150000090...

    Goldbach’s Conjecture. One of the greatest unsolved mysteries in math is also very easy to write. Goldbach’s Conjecture is, “Every even number (greater than two) is the sum of two primes ...

  6. ‘Connections’ Hints and Answers for NYT's Tricky Word Game on ...

    www.aol.com/connections-hints-answers-nyts...

    Connections game from The New York Times. Spoilers ahead! We've warned you. We mean it. Read no further until you really want some clues or you've completely given up and want the answers ASAP ...

  7. Glossary of mathematical symbols - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_mathematical...

    Bourbaki dangerous bend symbol: Sometimes used in the margin to forewarn readers against serious errors, where they risk falling, or to mark a passage that is tricky on a first reading because of an especially subtle argument. ∴ Abbreviation of "therefore". Placed between two assertions, it means that the first one implies the second one.

  8. ‘Connections’ Hints and Answers for NYT's Tricky Word Game on ...

    www.aol.com/connections-hints-answers-nyts...

    Connections Game Answers for Wednesday, October 4, 2023: 1. CHRISTMAS-RELATED: MISTLETOE, REINDEER, SNOWMAN, STOCKING 2. MAKE PUBLIC: DISPLAY, EXHIBIT, PRESENT, SHOW ...

  9. 6-year-old provides the most genius answer to his math problem

    www.aol.com/news/2015-11-04-6-year-old-provides...

    Young student answers math test by drawing his thinking in a bubble. ... 6-year-old provides the most genius answer to his math problem. Ruben Salvadori. Updated July 14, 2016 at 10:42 PM.

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