02 Feb 13, 06:43AM
lol----
Want to find out how many steps are visible in an escalator. To this was done the following: two people began climbing an escalator together, one going one step at a time while the other climbed two . On top the first person counted 21 steps while the other 28. With this data it was possible to answer the question. How many steps are visible on that escalator? (Note: escalator is operating).
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Want to find out how many steps are visible in an escalator. To this was done the following: two people began climbing an escalator together, one going one step at a time while the other climbed two . On top the first person counted 21 steps while the other 28. With this data it was possible to answer the question. How many steps are visible on that escalator? (Note: escalator is operating).
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