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# Snowman

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Age 14 to 16

Challenge Level

- Problem
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All the words in the Snowman language consist of exactly seven letters formed from the letters {s, no, wm, an} arranged in some order where the paired letters cannot be separated. For example ``snonono'' and ``sssanwm'' are words in the language but ``sssmwan'' and ``sssawmn'' are not. How many words are there in the Snowman language? |

Draw a 'doodle' - a closed intersecting curve drawn without taking pencil from paper. What can you prove about the intersections?

I want some cubes painted with three blue faces and three red faces. How many different cubes can be painted like that?