### Tea Cups

Place the 16 different combinations of cup/saucer in this 4 by 4 arrangement so that no row or column contains more than one cup or saucer of the same colour.

### Teddy Town

There are nine teddies in Teddy Town - three red, three blue and three yellow. There are also nine houses, three of each colour. Can you put them on the map of Teddy Town according to the rules?

### Painting Cubes

Imagine you have six different colours of paint. You paint a cube using a different colour for each of the six faces. How many different cubes can be painted using the same set of six colours?

# Making 11p

##### Stage: 3 Short Challenge Level:
11

With no 5p coins, there could be 0, 1, 2, 3, 4 or 5 2p coins, i.e. 6 possible ways.

With one 5p coin, there could be 0, 1, 2 or 3 2p coins, i.e. 4 possible ways.

With two 5p coins, there can be no 2p coins, i.e. 1 possible way.

This problem is taken from the UKMT Mathematical Challenges.
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