Wednesday, 15 February 2012

Mindbender 4


I've been following for a few weeks the daily Mindbender puzzles in the Western Morning News, and documenting my solutions for some: not through any claim to brilliance, but because they often present interesting angles on techniques for solving mathematical problems.

This one proved a classic example for a very powerful technique that's not well-known outside the maths/sciences circuit.

See solution.

- Ray

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