Puzzles · In English · 1917
Amusements in Mathematics
430 brain-teasers about crossing rivers, cutting cakes and moving matches, with the answers at the back. Good training for logic and patience.
40 chapters · about 12 h of reading
Opening the book
How the book begins
[Transcribers note: Many of the puzzles in this book assume a familiarity with the currency of Great Britain in the early 1900s. As this is likely not common knowledge for those outside Britain (and possibly many within,) I am including a chart of relative values.
Numbers with fractional components (other than ¼, ½ and ¾) have a + symbol separating the whole number component from the fraction. It makes the fraction look odd, but yeilds correct solutions no matter how it is interpreted. E.G., 4 and eleven twenty-thirds is 4+11/23, not 411/23 or 4-11/23.
In Mathematicks he was greater Than Tycho Brahe or Erra Pater: For he, by geometrick scale, Could take the size of pots of ale; Resolve, by sines and tangents, straight, If bread or butter wanted weight; And wisely tell what hour o' th' day The clock does strike by algebra.
Contents
- 01Part 1
- 02Part 2
- 03Part 3
- 04Part 4
- 05Part 5
- 06Part 6
- 07Part 7
- 08Part 8
- 09Part 9
- 10Part 10
- 11Part 11
- 12Part 12
- 13Part 13
- 14Part 14
- 15Part 15
- 16Part 16
- 17Part 17
- 18Part 18
- 19Part 19
- 20Part 20
- 21Part 21
- 22Part 22
- 23Part 23
- 24Part 24
- 25Part 25
- 26Part 26
- 27Part 27
- 28Part 28
- 29Part 29
- 30Part 30
- 31Part 31
- 32Part 32
- 33Part 33
- 34Part 34
- 35Part 35
- 36Part 36
- 37Part 37
- 38Part 38
- 39Part 39
- 40Part 40
About this edition
Public domain: the author died in 1930, more than seventy years ago, and the book was first published in 1917. It is free to read, copy and share in the EU, Russia and the United States.
We removed the source's wrapper, rejoined the lines and split the book into chapters. The words are the author's.