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There are three loops in a tangle of rope. How many are independent, and how many are interlocked?Two knights stand on a chessboard. How many other knights must you add so that each square is occupied or threatened by a knight?Among six seemingly identical drawings of mandalas, each rotated by multiples of 60 degrees, one is different. Which is it, and why?Challenge yourself with these mind-benders, brainteasers, and puzzles. Each of them has been carefully selected so that none will be too tough for anyone without a math background ― but they’re not too easy. Some are original, and all are clearly and accurately answered at the back of the book.
€13.35
भाषा अंग्रेज़ी ● स्वरूप EPUB ● ISBN 9780486805672 ● प्रकाशक Dover Publications ● प्रकाशित 2015 ● डाउनलोड करने योग्य 3 बार ● मुद्रा EUR ● आईडी 6487662 ● कॉपी सुरक्षा Adobe DRM
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