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Math Help - Question related to Line Graph ( Effective %, Average)

  1. #1
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    Question related to Line Graph ( Effective %, Average)

    Hello Experts,

    Study the following attached graph carefully to answer these questions:

    see the attached file for graph ( line graph.jpg)

    Q A) If the average population for years 1998, 1999 and 2000 was 2.67 lakhs, what was the population in 1998 ?
    1) 1.6 lakhs
    2) 1.8 lakhs
    3) 2.4 lakhs
    4) can not be determined
    5) none of these

    Q B) what was the effective percent rise in population from 2000 to 2002 ?
    1) 217
    2) 88
    3) 85
    4) 117
    5) None of these

    Plz solve these two questions with explanation..............
    Attached Thumbnails Attached Thumbnails Question related to Line Graph ( Effective %, Average)-line-graph.jpg  
    Last edited by ift38375; February 13th 2013 at 06:25 AM.
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  2. #2
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    Re: Question related to Line Graph ( Effective %, Average)

    Hey ift38375.

    Hint: Write down two sets of equations (one being the average and the other being the ratios of all cities population with respect to the others) to get a set of simultaneous equations and see if you can get a solution.
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  3. #3
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    Re: Question related to Line Graph ( Effective %, Average)

    Hello Experts,

    Plz help me out.........
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  4. #4
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    Re: Question related to Line Graph ( Effective %, Average)

    Plz show interest in my question...... you can assume lakhs = $, it is just for currency
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