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Math Help - ratios

  1. #1
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    ratios

    Jo's collection contains US, Indian and British stamps. If the ratio of US to Indian stamps is 5 to 2 and the ratio of Indian to British stamps is 5 to 1, what is the ratio of US to British stamps?

    Do you guys have any idea how to solve it?
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  2. #2
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    Quote Originally Posted by lightstevoo View Post
    Jo's collection contains US, Indian and British stamps. If the ratio of US to Indian stamps is 5 to 2 and the ratio of Indian to British stamps is 5 to 1, what is the ratio of US to British stamps?

    Do you guys have any idea how to solve it?
    You can write the fractions....

    \displaystyle\frac{US}{IN}=\frac{5}{2}

    \displaystyle\frac{IN}{BR}=\frac{5}{1}

    We want \displaystyle\frac{US}{BR}


    Notice that..

    \displaystyle\frac{US}{IN}\ \frac{IN}{BR}=\frac{US}{BR}
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