:: Recommended ::

:: Collaborations ::

:: Escalator at the Tube ::

One morning, Ben is in a hurry as he approaches the escalator at the tube station, but Fred is in an even bigger hurry. For every 2 steps Ben took, Fred took 3. Altogether Fred took 25 steps before getting off the escalator, while Ben took 20. Both of them step on every step.

How many steps does the escalator have showing at any given time?

Answer