Rubik's cube
A Rubik's cube, you'll be pleased to hear, can always be solved in at most 20 moves, no matter how badly it was scrambled up to start with. Mathematicians have proved that that's true. But what if you're wrestling with a larger cube that has more than three little cubes in a row?
Some practical tips to help you when you need it most!
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Want facts and want them fast? Our Maths in a minute series explores key mathematical concepts in just a few words.
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Find out why the formula we use to work out conditional probabilities is true!
We talk about a play that explores the fascinating mathematical collaboration between the mathematicians GH Hardy and Srinivasa Ramanujan.