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Math Help - ratio

  1. #1
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    ratio

    this is my question:

    the ratio of boys to girls is 3:4. 150 boys. how many girls?

    how would i work this out?

    is this correct? 150 divided 7 which is 21.4, then would i times 21.4 4 times to get the answer?
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  2. #2
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    Quote Originally Posted by andyboy179 View Post
    this is my question:

    The ratio of boys to girls is 3:4. 150 boys. How many girls?

    How would i work this out?

    Is this correct? 150 divided 7 which is 21.4, then would i times 21.4 4 times to get the answer?
    3 : 4 => 150 : 200
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  3. #3
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    Quote Originally Posted by mr fantastic View Post
    3 : 4 => 150 : 200

    oh ye, thanks mate
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