Amusements in Mathematics
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Оглавление
Henry Ernest Dudeney. Amusements in Mathematics
Amusements in Mathematics
Table of Contents
PREFACE
AMUSEMENTS IN MATHEMATICS
ARITHMETICAL AND ALGEBRAICAL PROBLEMS
MONEY PUZZLES
AGE AND KINSHIP PUZZLES
CLOCK PUZZLES
LOCOMOTION AND SPEED PUZZLES
DIGITAL PUZZLES
VARIOUS ARITHMETICAL AND ALGEBRAICAL PROBLEMS
GEOMETRICAL PROBLEMS
DISSECTION PUZZLES
GREEK CROSS PUZZLES
VARIOUS DISSECTION PUZZLES
PATCHWORK PUZZLES
VARIOUS GEOMETRICAL PUZZLES
POINTS AND LINES PROBLEMS
MOVING COUNTER PROBLEMS
UNICURSAL AND ROUTE PROBLEMS
COMBINATION AND GROUP PROBLEMS
CHESSBOARD PROBLEMS
THE CHESSBOARD
STATICAL CHESS PUZZLES
THE GUARDED CHESSBOARD
NON-ATTACKING CHESSBOARD ARRANGEMENTS
THE TWO PIECES PROBLEM
DYNAMICAL CHESS PUZZLES
VARIOUS CHESS PUZZLES
MEASURING, WEIGHING, AND PACKING PUZZLES
CROSSING RIVER PROBLEMS
PROBLEMS CONCERNING GAMES
PUZZLE GAMES
MAGIC SQUARE PROBLEMS
SUBTRACTING, MULTIPLYING, AND DIVIDING MAGICS
MAGIC SQUARES OF PRIMES
MAZES AND HOW TO THREAD THEM
THE PARADOX PARTY
UNCLASSIFIED PROBLEMS
SOLUTIONS
FIRST METHOD
SECOND METHOD
INDEX
THE END
Отрывок из книги
Henry Ernest Dudeney
Published by Good Press, 2019
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21.—A DEAL IN APPLES.
I paid a man a shilling for some apples, but they were so small that I made him throw in two extra apples. I find that made them cost just a penny a dozen less than the first price he asked. How many apples did I get for my shilling?
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