How to calculate a century?

  1. if 1 century = 100, and 100 centuries = 10,000,
    does 154 hundred thousand centuries = 154,000,000?
    So it's same as 154million years?

    Or is it 154 * 100,000 = 15,400,000 * 100 = 1,540,000,000?
    1.54Billion?

    or is it 15,400,000?

    thank you.
     
  2. jcsd
  3. cepheid

    cepheid 5,194
    Staff Emeritus
    Science Advisor
    Gold Member

    This is a really awkward word construction that no one would ever use, but if I heard it, I would interpret it as meaning 154 * 100,000.
     
  4. 1 century : 100 years
    100 : 10000 years
    15400000 : 1,540,000,000

    is it?
     
  5. cepheid

    cepheid 5,194
    Staff Emeritus
    Science Advisor
    Gold Member

    Sorry I just realized this was ambiguous. I would interpret it as meaning:

    154*100,000 centuries = 15,400,000 centuries

    = 154*100,000*100 years = 1,540,000,000 years
     

  6. i also confused with your earlier post..
     
  7. century = 100
    154,000 * century = 154,000 * 100
     
  8. Mark44

    Staff: Mentor

    1 century = 100 years
    154,000 * 1 century = 154,000 * 100 years
     
  9. I am confused.
    Is the correct answer: 1,540,000,000 years or not?
     
  10. You have the answer. What's 154,000 * 100?
     
  11. So it's 15,400,000
    not
    1,540,000,000?
     
  12. prof says 1,540,000,000 is right. as you have to multiply 10,000,000 by 154.
     
  13. cepheid

    cepheid 5,194
    Staff Emeritus
    Science Advisor
    Gold Member

    These are BOTH right. The first one is the answer in units of centuries, and the second one is the answer in units of years. At least two people have already explained that. I'm not sure why you're making this so complicated.
     
  14. Mark44

    Staff: Mentor

    Especially with such a weirdly worded question - "what is 154 hundred thousand centuries?"
     
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