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E-grāmata: Mathematical Brainteasers with Surprising Solutions

3.75/5 (15 ratings by Goodreads)
  • Formāts: EPUB+DRM
  • Izdošanas datums: 14-Apr-2020
  • Izdevniecība: Prometheus Books
  • Valoda: eng
  • ISBN-13: 9781633885851
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  • Formāts: EPUB+DRM
  • Izdošanas datums: 14-Apr-2020
  • Izdevniecība: Prometheus Books
  • Valoda: eng
  • ISBN-13: 9781633885851
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If you like any kind of game at all, you'll enjoy the amazing mathematical brainteasers in this entertaining book. No special mathematics training is needed. With an emphasis on puzzling word problems with surprising solutions, the author presents his mathematical hurdles in order of increasing difficulty. Many appear deceptively simple, such as: How many quarter-inch marks are on an unusual sixteen-inch ruler? Or: If the cost of a bottle and a cork is $1.10 and the bottle costs $1.00 more than the cork, how much did the bottle alone cost? Check the answers before you decide that these are too easy. You may be surprised.Novices may want to begin with some of the teasers in the first "easy" section. More experienced math-heads may want to test their wits with the "challenging" or even the "difficult" sections (some are fiendishly difficult). Including word problems by famed mathematical puzzle geniuses Sam Loyd (1841 - 1911) and Henry Ernest Dudeney (1857 - 1930), which have entertained recreational math aficionados for more than a century, this book has something for puzzle solvers at any level. And for the math phobic, it may whet your appetite to delve into a subject you thought could only be boring.

Proves that math can be serious fun!

If you like any kind of game at all, you'll enjoy the amazing mathematical brainteasers in this entertaining book. No special mathematics training is needed.

With an emphasis on puzzling word problems with surprising solutions, the author presents his mathematical hurdles in order of increasing difficulty. Many appear deceptively simple, such as: How many quarter-inch marks are on an unusual sixteen-inch ruler? Or: If the cost of a bottle and a cork is $1.10 and the bottle costs $1.00 more than the cork, how much did the bottle alone cost? Check the answers before you decide that these are too easy. You may be surprised.

Novices may want to begin with some of the teasers in the first "easy" section. More experienced math-heads may want to test their wits with the "challenging" or even the "difficult" sections (some are fiendishly difficult). Including word problems by famed mathematical puzzle geniuses Sam Loyd (1841 - 1911) and Henry Ernest Dudeney (1857 - 1930), which have entertained recreational math aficionados for more than a century, this book has something for puzzle solvers at any level. And for the math phobic, it may whet your appetite to delve into a subject you thought could only be boring.

Papildus informācija

Proves that math can be serious fun!
Foreword xi
Introduction xv
EASY PUZZLES, EASY TEASERS
1(54)
1 The Rope Ladder
3(2)
2 The Bottle and the Cork
5(2)
3 The Newspaper Round
7(2)
4 Cigarette Butts
9(2)
5 Which Tank Will Empty First?
11(2)
6 How Long Is the Line AB?
13(2)
7 Blaney to Slaney
15(2)
8 The Case of the Missing Dollar
17(2)
9 How Long Is the Side of the Inner Square?
19(2)
10 The Train Leaving and Returning to the Station
21(2)
11 The Height of the Stack of Paper
23(2)
12 The Caterpillar
25(2)
13 Brooklyn versus Bronx
27(2)
14 The Color of the Bear
29(2)
15 9 Coins
31(2)
16 2 Teenagers
33(2)
17 The Unlucky Storekeeper
35(2)
18 Bacteria in a Jar
37(2)
19 3 Cats
39(2)
20 The Thief in the Store
41(2)
21 Counting Blonde Students
43(2)
22 The Cost of Shoeing a Horse
45(4)
23 The 16-Inch Ruler
49(2)
24 Pay Raise and Pay Cut
51(2)
25 The Cleaning Lady
53(2)
CHALLENGING TEASERS
55(126)
26 The Lonely Monk
57(2)
27 The Town Council Clock
59(2)
28 The Books on the Bookshelf
61(2)
29 The Black and White Marbles
63(2)
30 How Far Has the Fly Traveled?
65(2)
31 5 Loaves and 3 Gentlemen
67(2)
32 2 Red Queens and a Black Ace
69(2)
33 The Curious Transaction That Resulted in a Missing Dollar
71(2)
34 Counting the Number of Earrings
73(2)
35 The Bicycle Race
75(2)
36 The Will
77(2)
37 The 2 Crossing Ropes
79(4)
38 The 2 Bullets in a Revolver
83(2)
39 The Bookworm
85(2)
40 How Many Ways Can the 20 Numbers on a Dartboard Be Arranged?
87(2)
41 The Tower of Hanoi Puzzle
89(4)
42 The Kidnapper
93(2)
43 The 5 Letters and Envelopes
95(2)
44 The Rate of Speed That Mary Swims
97(2)
45 The Floating Ice Cube
99(2)
46 The 10 Stacks of Coins
101(2)
47 Signs along the Highway
103(2)
48 Choose 2 Good Eggs from 6
105(2)
49 The Party
107(2)
50 Whom Should Johnny Play First?
109(4)
51 The Engagement Ring
113(2)
52 The 2 Women Selling Apples
115(4)
53 Tommy Takes a Walk
119(4)
54 The Story of Linda
123(4)
55 The Problem of the Average Speed on the Round-Trip
127(2)
56 Bixley to Quixley
129(4)
57 The Boat and Its Cargo
133(2)
58 The Mutilated Checkerboard
135(4)
59 The Rose Garden
139(4)
60 The Deck of Cards Problem
143(2)
61 The Weight of the Potatoes
145(2)
62 Calculating the Width of a River
147(4)
63 The Green and Blue Cabs
151(2)
64 The 3 Dice
153(2)
65 The 3 Vagabonds
155(2)
66 The Tennis Tournament
157(2)
67 2 Footballs
159(2)
68 The Birthday Paradox
161(4)
69 The Second Child Puzzle
165(4)
70 The 4 Bridge Players
169(2)
71 The 2 End Digits of 20 Numbers
171(2)
72 Lewis Carroll's Problem in Probability
173(2)
73 Against the Wind
175(2)
74 The 2 Express Trains
177(2)
75 The Man Packing a Suitcase
179(2)
SLIGHTLY MORE CHALLENGING TEASERS
181(134)
76 The Links in the Gold Chain
183(4)
77 The Rotating Coin
187(2)
78 Dividing the Spoils
189(2)
79 Counting the Votes
191(2)
80 The Fence-Post Problem
193(2)
81 Mr. Blueberry's Will
195(2)
82 The Jeweler and the Chain
197(2)
83 The Price of a Book
199(2)
84 Visiting a Friend
201(2)
85 The Typing Teenager
203(2)
86 Mr. Simpson's Influence
205(4)
87 The Potential Employee
209(2)
88 The Price of Books
211(2)
89 The Lady in the Jewelry Store
213(2)
90 Proving Dr. Krieger's Equation Cannot Hold
215(2)
91 The Problem Involving Percentages
217(2)
92 The HIV Test
219(2)
93 The Mammogram Test
221(2)
94 Boys and Girls
223(4)
95 The Distance to the Horizon
227(4)
96 Traversing 50 Miles of Track
231(2)
97 2 Steamboats
233(4)
98 The Bridge Players
237(4)
99 The Most Likely Position of the First Black Ace in a Shuffled Deck
241(2)
100 Gold and Silver Coins
243(2)
101 The Paradox of the Second Ace
245(4)
102 The Pay Raise
249(4)
103 The Daily Commuter
253(2)
104 How Far Is It from Flag D to Flag A?
255(6)
105 The 2 Tennis Players
261(4)
106 The Courier Problem
265(4)
107 The Lake Problem
269(4)
108 The Spot in a Rectangle
273(4)
109 How Should the Investment Be Divided?
277(2)
110 Square Fields and Fence Hurdles
279(4)
111 The Rope around the Earth
283(2)
112 The Rope in the Soccer Playing Field
285(2)
113 Which Scenario Should You Choose?
287(2)
114 What Is the Probability That You Will Get Your Assigned Seat?
289(2)
115 The Floating Hat
291(4)
116 The 2 Riverboats
295(4)
117 What Is the Largest Number That Can Be Expressed Using 3 Digits?
299(2)
118 Lottery Odds
301(2)
119 Water and Brandy
303(2)
120 The Hole through a Sphere
305(6)
121 The Ant on a Rubber Rope
311(4)
SHORT BIOGRAPHIES
315(18)
Samuel Loyd
317(4)
Henry Ernest Dudeney
321(4)
Martin Gardner
325(8)
Notes 333(4)
Select Bibliography 337
Owen O'Shea is the author of The Call of the Primes and The Magic Numbers of the Professor (with Underwood Dudley) as well as articles in the Journal of Recreational Mathematics and EdgeScience.