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Math Help - Ratio Problem

  1. #1
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    Ratio Problem

    C had 3 out of 5 of 20 items required to start the school year.What fraction of the number of items he was lacking ?

    i get 2/5.Is it right ?
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  2. #2
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    Quote Originally Posted by haftakhan View Post
    C had 3 out of 5 of 20 items required to start the school year.What fraction of the number of items he was lacking ?

    i get 2/5.Is it right ?
    Yes. (Although the question may well want you to calculate 2/5 of 20 as the answer ....)
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  3. #3
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    If the ratio of Saturated to unsaturated fatty acids in a cell membrane is 9 to 1 and there are a total of 69 billion fatty acids molecules.How many of them are saturated ?

    9/10 *69=62.1 billion.

    is it right ?
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  4. #4
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    Quote Originally Posted by haftakhan View Post
    If the ratio of Saturated to unsaturated fatty acids in a cell membrane is 9 to 1 and there are a total of 69 billion fatty acids molecules.How many of them are saturated ?

    9/10 *69=62.1 billion.

    is it right ?
    Yes.

    Please ask new questions in a new thread.
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  5. #5
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    is there any calculation required for the 1st question ?
    As i didn't do any calculation to get to the answer.it was simple.
    I will post in new thread from next time
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