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Math Help - rati word poblem

  1. #1
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    rati word poblem

    an absent minded doctor cannot remember how many patients are on his registar. records show that the ratio of male to females patients is 2:3 and the ratio of private to NHS patients is 2:5 . How many patients are on the registar,


    chose from
    a)60
    b)63
    c)70
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  2. #2
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    Re: rati word poblem

    the total number of patients must be divisible by 5 and by 7 ...
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  3. #3
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    Re: rati word poblem

    so its 70?
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  4. #4
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    Re: rati word poblem

    Quote Originally Posted by Tweety View Post
    so its 70?
    you tell me ... do you understand why?
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  5. #5
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    Re: rati word poblem

    yes, both ratio's have to be divisible by the same number
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  6. #6
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    Re: rati word poblem

    do you understand how I came up with 5 and 7?
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