Lateral Thinking Brain Teaser with Answer

If we observe things around us, we will find many puzzles around us. Here is one such puzzle observed at London Metro underground station. However, this is true for most of the underground metro stations. Can you wear your lateral thinking cap and solve this box thinking puzzle?

Can you solve this lateral thinking puzzle?

The answer can be viewed by clicking on the button. Please do give your best try before looking at the answer.

When a train arrives at the metro station then there are many people in groups simultaneously leaving the station. However, people don't come down to the station in groups. This is the reason one will find more escalators going up than the number of escalators coming down.

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