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  2. Ages of Three Children puzzle - Wikipedia

    en.wikipedia.org/wiki/Ages_of_Three_Children_puzzle

    B. 3 + 3 + 8 = 14. In case 'A', there is no 'eldest child': two children are aged six (although one could be a few minutes or around 9 to 12 months older and they still both be 6). Therefore, when told that one child is the eldest, the census-taker concludes that the correct solution is 'B'. [3]

  3. Millennium Prize Problems - Wikipedia

    en.wikipedia.org/wiki/Millennium_Prize_Problems

    The Clay Mathematics Institute officially designated the title Millennium Problem for the seven unsolved mathematical problems, the Birch and Swinnerton-Dyer conjecture, Hodge conjecture, Navier–Stokes existence and smoothness, P versus NP problem, Riemann hypothesis, Yang–Mills existence and mass gap, and the Poincaré conjecture at the ...

  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 [126]) 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 [127]

  5. United Kingdom Mathematics Trust - Wikipedia

    en.wikipedia.org/wiki/United_Kingdom_Mathematics...

    Questions 16-20 are more difficult and are worth 6 marks. The last five questions are intended to be the most challenging and so are also 6 marks. Questions to which no answer is entered will gain (and lose) 0 marks. [4] However, in recent years there has been no negative marking so wrong questions will be given 0 marks. Previously, the top 40% ...

  6. List of mathematics competitions - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematics...

    American Mathematics Contest 8 (AMC->8), formerly the American Junior High School Mathematics Examination (AJHSME) Math League (grades 4–12) MATHCOUNTS; Mathematical Olympiads for Elementary and Middle Schools (MOEMS) Noetic Learning math contest (grades 2-8) Pi Math Contest (for elementary, middle and high school students)

  7. Australian Mathematics Competition - Wikipedia

    en.wikipedia.org/wiki/Australian_Mathematics...

    The Australian Mathematics Competition is a mathematics competition run by the Australian Maths Trust for students from year 3 to year ... choice questions and five ...

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  9. Math League - Wikipedia

    en.wikipedia.org/wiki/Math_League

    Math League runs three contest formats: Grades 4-5: 30 multiple-choice questions to solve in 30 minutes, covering arithmetic and basic principles; Grades 6-8: 35 multiple-choice questions to solve in 30 minutes, covering advanced arithmetic and basic topics in geometry and algebra; Grades 9-12: Series of 6 contests.

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