Eurobirthdays 2012
Friday 15 June 2012
A 'progressive' problem
The troubled stadium gates
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmF1qQyJXsPNRs1bBJF_o9GbNmfmvEuCkGLLJmr46QGYvwIvea6_vookMK5uT0eaXceOoyTnm2zTYFXq_c5cKs8WVGgtXKzH90lAnIOEcRCPL2nw7f0uDMMRTTBT2u31l9XcSP_JmQv4k/s1600/puertascerradas2.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmF1qQyJXsPNRs1bBJF_o9GbNmfmvEuCkGLLJmr46QGYvwIvea6_vookMK5uT0eaXceOoyTnm2zTYFXq_c5cKs8WVGgtXKzH90lAnIOEcRCPL2nw7f0uDMMRTTBT2u31l9XcSP_JmQv4k/s1600/puertascerradas2.jpg)
15/06/2012
A problem with the exit gates at the Euro 2012 final in Kyiv leads us to a mathematical teaser based on arithmetic and geometric progressions.
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