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Puzzle Box, Volume 1
Puzzle Box Volume 1
Author: Andrea Gilbert, Bram Cohen, Helen Grabarchuk, Donald Knuth, Ed Pegg Jr., Richard Candy, Erich Friedman, Harry Nelson, Shelly Hazzard, Tanya Grabarchuk
Multiplying my age by 6 then subtracting 6 produces the same result as subtracting 7 from my age then multiplying by 7. How old am I? — On my broken calculator with keys + - ÷ x =, the only functional number is 7. How can I get 34 to appear in the readout? — A country mints four denominations of coins, in whole numbers of cents. It takes four of t...  more »
ISBN-13: 9780486810041
ISBN-10: 0486810046
Publication Date: 11/16/2016
Pages: 96
Edition: Act Csm
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Publisher: Dover Publications
Book Type: Paperback
Members Wishing: 0
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