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Math Help - percentages - I can't do this...

  1. #1
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    Question percentages - I can't do this...

    OK, I'm buying a printer - I have been told that a printer toner cartridge has an average lifespan of 83,000 pages at 5% coverage per page.
    I need to work out how many pages I will get out of this cartridge at 100% coverage.
    This might be so simple, but my brain doesn't work that way..
    Any help much appreciated!!!
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  2. #2
    Super Member
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    Quote Originally Posted by ames View Post
    OK, I'm buying a printer - I have been told that a printer toner cartridge has an average lifespan of 83,000 pages at 5% coverage per page.
    I need to work out how many pages I will get out of this cartridge at 100% coverage.
    This might be so simple, but my brain doesn't work that way..
    Any help much appreciated!!!
    Well 1 page with 100% coverage is the same as 20 pages with 5% coverage, assuming the pages are all identical in size!. So divide the number of pages by 20.

    4150 pages.
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  3. #3
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    Joined
    Jan 2009
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    Thumbs up you can see why I failed maths

    Thanks for your help.. I was thinking something along the right lines, but in the wrong direction! thanx!
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