Category Archives: Puzzles

The Real Thing

I stumbled across the above puzzle the other day. What is the number underneath the car? Don’t worry if you don’t get it – you won’t be alone.  I had the problem up on the board as a starter for my Upper Sixth A-Level class. The lad who is on course to get an A* […]

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An Infinity of Chocolate

I’m off to buy myself a bar!

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A Marathon Problem

  I once half ran half of a half marathon, and got half way.   So if a half marathon is 13.1 miles how far did I run? And if I took half an hour, how fast did I run? Best of luck to any of you running in tomorrow’s London Marathon. Perhaps you can […]

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Happy New Year!

Happy New Year! 2014 as the product of its prime factors: 2 x 19 x 53 2014 is the sum of four consecutive digits: 502 + 503 + 504 + 505 2014 in binary: 11111011110 Here’s a little challenge for you mull over through the fog of a new year’s day hangover (or give to […]

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The Joy of X

Looking for a Christmas gift for a mathematically minded individual? Or perhaps you are being pestered to provide ‘a list?’ I’m happy to recommend this book: ‘The Joy of X’ by Steven Strogatz which I read, and thoroughly enjoyed, in the summer. As I said on my review of the book on Amazon, its a […]

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