AMUSEMENTS IN MATHEMATICS HENRY ERNEST DUDENEY. AUTHOR OF IN issuing this new volume of my Mathematical Puzzles, of which some have. Henry Ernest Dudeney (10 April – 23 April ) was an English author and mathematician who specialised in logic puzzles and mathematical games. He is known as one of the country’s foremost creators of mathematical . The Canterbury Puzzles (); Amusements in Mathematics (); The World’s Best Word. Amusements in Mathematics (Dover Recreational Math) [Henry E. Dudeney] on *FREE* shipping on qualifying offers. The legion of H. E. Dudeney .

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After dinner, the five boys of a household happened to find a parcel of sugar-plums. When the early members of the staff arrived at Wapshaw’s Wharf they found that the safe had been broken open, a considerable sum of money removed, and the offices left in great disorder. Visit our Beautiful Books page and find lovely books for kids, photography lovers and more.

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Books by Henry Ernest Dudeney. A man left a hundred acres of land to be divided among his three sons—Alfred, Benjamin, and Charles—in the proportion of one-third, one-fourth, and one-fifth respectively. Not too interesting It is okay we cannot understand the questions Even currency is given in shillings. One of the big clocks in the Cogitators’ Club was found the other night to have stopped just when, as will be seen in the illustration, the second hand was exactly midway between the other two hands.

If one man can reap a field in six days, we say two men will reap it in three days, and three men will do the work in two days. One person found this helpful. Item s unavailable for purchase. The Greek cross, as shown in Fig. They are really quite easy, and yet many persons are tripped up by them.


Certain things are antecedently assumed, and the answer depends henty on the truth of those assumptions. As a ddueney of fact, he just amusemnets against sixteen bricks, when these were fixed to the short end of plank, but if he fixed them to the long end of plank he only needed eleven as balance. Add these together, and the result is If I multiply 51, by 3 thus using all the nine digits once, and once onlyI get , which again contains all the nine digits once.

Now, the puzzle I propose is to rearrange the counters so as to get as large a product as possible.

Henry Dudeney – Wikipedia

Now, can you say exactly how many boys there were in the school? Now, what was the name of each man’s wife? The number 1 is always regarded as triangular, just as 1 is a square and a cube number. Indeed, it may be accepted as a good maxim that a puzzle is of little real value unless, as well as being amusing and perplexing, it conceals some instructive and possibly useful feature.

The history of the subject entails nothing short of the actual story of the beginnings and development of exact thinking in man.

Henry Dudeney

And my readers, if not warned, will be practically unanimous erhest declaring the income to be—something absurdly in excess of the correct answer! A boy who was demolishing a choice banana was approached by a young friend, who, regarding him with envious eyes, asked, “How much did you pay for that banana, Fred? Mayfield, East SussexEngland. And they are just as fascinating mathemtaics as they can have been at any period of their history. A man bought an odd lot of wine in barrels and one barrel containing beer.


Pg 4 The salesman had new-laid eggs at the high price of fivepence each, fresh eggs at one penny each, eggs at a halfpenny dueney, and eggs for electioneering purposes at a greatly reduced figure, but as there akusements no election on at the time the buyer had no use for the last. They had agreed that whenever a player won a game he should double the money of each of the other players—that is, he was to give the players just as much money as they had already in their pockets.

Some are very easy, others quite difficult. Can you give exact measurements for the sides of the boards?

The gentleman went on his road a puzzled but a wiser man. An ancient sculptor was commissioned to supply two statues, each on a cubical pedestal. The puzzle is to cut the figure shown in Fig.

He said that he had enough farthings to supply a West End draper with change for a week, and a sufficient number of threepenny pieces for the congregations of three parish churches. The Best Books of Three countrymen met at a cattle market. Can you unravel the mystery?