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Going up (Posted on 2003-06-01) Difficulty: 3 of 5
A man walks up an escalator, taking one step per second. After taking thirty steps, he is at the top.

Next day, he goes up at two steps per second, reaching the top in 36 steps.

The third day, he has had a long afternoon and merely sits on the escalator, waiting for it to reach the top.

How long does it take him?

See The Solution Submitted by DJ    
Rating: 4.2632 (19 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re(2): DJ or .? | Comment 6 of 10 |
(In reply to re: DJ or .? by Lewis)

Heh..I was editing my info and must have accidentally overwritten my name. I didn't post anything in the meantime and didn't notice the change until today (when one of my other problems went live). I don't know when it happened...
  Posted by DJ on 2003-06-04 11:29:15

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