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Math Help - John saved 2/7 of $560 and gave the rest to his mother and father in the ratio of 3:2

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    Cool John saved 2/7 of $560 and gave the rest to his mother and father in the ratio of 3:2

    John saved 2/7 of $560 and gave the rest to his mother and father in the ratio of 3:2. How much did the mother receive?

    2/7x560 = $160
    560-160 = $400

    5 units = $400
    1 unit = 400 divided by 5 = 80
    3 units = 80x3 = $160

    ANSWER = $160

    Is this correct?
    Last edited by mr fantastic; June 29th 2011 at 01:14 PM. Reason: Re-titled.
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  2. #2
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    Re: Is this answer correct?

    Your working is fine but check your arithmetic again. 80 \times 3 \neq 160
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  3. #3
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    Re: Is this answer correct?

    Keep working on that "80 * 3".
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    Re: Is this answer correct?

    Quote Originally Posted by ProMathematics View Post
    John saved 2/7 of $560 and gave the rest to his mother and father in the ratio of 3:2. How much did the mother receive?

    2/7x560 = $160
    560-160 = $400

    5 units = $400
    1 unit = 400 divided by 5 = 80
    3 units = 80x3 = $160

    ANSWER = $160

    Is this correct?

    Don't want to be your mother...
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  5. #5
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    Re: Is this answer correct?

    Quote Originally Posted by Also sprach Zarathustra View Post
    Don't want to be your mother...
    I don't think you are in any danger!
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  6. #6
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    Re: Is this answer correct?

    Alternatively

    the money is divided up between John, mother and father in the ratio 2:3:2
    Hence the mother receives 3/7 of the money.
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