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Math Help - Arithmetic Question

  1. #1
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    Arithmetic Question

    89% of pure milk is water . 90 % of a sample milk is water . Find the quantity of water mixed with 22 litres of such milk.

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  2. #2
    Member wiseguy's Avatar
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    Hi Arka,

    22 liters * 0.90 = 19.8 liters of water



    converting percent to decimal is always 100% = 1, 90% = 0.9, 32% = 0.32, 2.3% = 0.023, etc.
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  3. #3
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    Quote Originally Posted by wiseguy View Post
    Hi Arka,

    22 liters * 0.90 = 19.8 liters of water

    converting percent to decimal is always 100% = 1, 90% = 0.9, 32% = 0.32, 2.3% = 0.023, etc.

    How do you know "such milk" is referring to "sample milk" instead of "pure milk"?

    22 *.89 = 19.6

    I doubt Arka is posting the original question in all of its full-worded glory, because the problem at present is really vague
    Last edited by 1005; July 19th 2010 at 02:18 PM.
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  4. #4
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    Quote Originally Posted by Arka View Post
    89% of pure milk is water . 90 % of a sample milk is water . Find the quantity of water mixed with 22 litres of such milk.

    NEED HELP!
    Arka, not to be funny, but pure milk has no water in it by strict definition so what is it you're really asking?
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  5. #5
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    Quote Originally Posted by wonderboy1953 View Post
    Arka, not to be funny, but pure milk has no water in it by strict definition so what is it you're really asking?
    uhhh, no. Milk is a combination of various things, so it's ok for 100% milk to have certain percentages of other things composing it.
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