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  • Puzzle page

    1 January, 1998
    January 1998
    Puzzle No. 4 - Three doors

    Here is this issue's puzzle.

    Solution to Puzzle No. 3 - birth dates

    The following people submitted correct answers:
    - Leigh Dyment, Summerside, PE, Canada.
    - Arthur Stratford, Cambridge, England.
    - Surya, Memphis, TN, USA.
    - Andrew Williams, Sussex, England.

    The taxi problem revisited

    Following on from this issue's article "Image analysis - a modern application of mathematics", we revisit the taxi problem from issue no. 2 (see "The taxi problem").

    The coin tossing problem

    Following on from this issue's article "What a coincidence!", this page on coin tossing takes you through the calculation of the length of longest run of heads in n coin tosses.

    Solution link
    Solution to Puzzle No. 4 - three doors
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