Skip to main content
### Number and algebra

### Geometry and measure

### Probability and statistics

### Working mathematically

### For younger learners

### Advanced mathematics

# Flagging

Or search by topic

Age 11 to 14

Challenge Level

- Problem
- Student Solutions

How many tricolour flags are possible with 5 available colours such that two adjacent stripes must NOT be the same colour. What about 256 colours?

<-- Here's an example for 3 colours.