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Simple math problem, I guess?

  1. Apr 24, 2006 #1
    The exercise:

    The answer given in the book:

    My initial thought was 0.001 x 20, but that's apparently wrong. I think I'm missing something basic.
     
  2. jcsd
  3. Apr 24, 2006 #2
    Everyday it increases uniformly by .001s per century so in one century each day will be .0001s longer. How much total time does this add on in 20 centuries?
     
  4. Apr 24, 2006 #3

    Doc Al

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    Staff: Mentor

    What you calculated is the increased length of a single day after 20 centuries. What's the average increase per day? How many days in 20 centuries?
     
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