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Math Help - Im quite lost...

  1. #1
    Newbie
    Joined
    Oct 2008
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    Im quite lost...

    Hello everyone, Im pretty lost on this word problem. I know the answer but I have no clue on how to achieve this answer. So it goes like this:

    This year, 75% of the graduating class of Harriet Tubman High School had taken at least 8 math courses. Of the remaining class members, 60% had taken 6 or 7 math courses. What percent of the graduating class had taken fewer than 6 math courses?

    I believe the answer is 10% but I would really like to know how to solve this!
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  2. #2
    Junior Member
    Joined
    Mar 2008
    Posts
    49
    Hello

    The remaining class members, who took less than 8 math courses, is 25%.

    60% of that 25% had taken 6 or 7 math courses.

    Find 60% of 25%:

    0.6 x 0.25 = 0.15

    So 15% had taken 6 or 7 math courses, that leaves 10% that had taken fewer than 6.

    Hope this helps.
    Last edited by Ting; October 11th 2008 at 02:28 PM. Reason: Typo
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