Letters in a line

7th March 2003 at 00:00
Use the letters A, B, C, D and E and put them in a line.

Letters that are next to each other in the alphabet must not be next to each other in the line.

Investigate different ways to do it.

How many ways can you find?

Brainteaser solutions

Letters in a line

There are seven different solutions and seven reflections

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