This book is a collection of over 200 problems that David Singmaster has composed since 1987. Some of the math problems have appeared in his various puzzle columns for BBC Radio and TV, Canadian Broadcasting, Focus (the UK popular science magazine), Games and Puzzles, the Los Angeles Times, Micromath, the Puzzle a Day memo pad and the Weekend Telegraph. While some of these are already classics, many of the puzzles have not been published elsewhere previously. Puzzle enthusiasts of all ages will find here arithmetic problems, properties of digits; monetary problems; alpha-metics; Diophantine problems; magic figures; sequence problems; logical problems; geometric problems; physics problems; combinatorial problems; geographic problems; calendar problems; clock problems; dissection problems and verbal problems. Contents:General Arithmetic PuzzlesProperties of DigitsMagic FiguresMonetary ProblemsDiophantine RecreationsAlphameticsSequence PuzzlesLogic PuzzlesGeometrical PuzzlesGeographic ProblemsCalendrical ProblemsClock ProblemsPhysical ProblemsCombinatorial ProblemsSome Verbal Puzzles Readership: General public. Key Features:The problems are generally original, though some are corrections or extensions of known problemsA number are open-ended, leading to unsolved problems for the readerKeywords:Metagrobologists;Alphametics;Magic Figures;Clock Problems;Diophantine qI believe the book will be welcome by amateur, as well as professional, metagrobologists. Many of the puzzles could be used as warm-up exercises to engender creative atmosphere in a math class. I am sure that many a math teacher will agree with this assessment.q Alexander Bogomolny Cut The KnotHence it takes 3/60 = 1/20 hour to go 2 miles, i.e. its average speed is 2/(1/20) = 40 mph, which is the same as the speed on the level ... CAUSE FOR REFLECTION The shortest mirror can be precisely 2 ft 9 in tall, i.e. exactly half her height.

Title | : | Problems for Metagrobologists |

Author | : | David Singmaster |

Publisher | : | World Scientific - 2016-02-23 |

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