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    #1

    Triple = up 200%

    Dear teachers

    In the sentence "GDP per capita has tripled over the past decade", if the GDP per capital started with $100 ten years ago, so after tripling, should it be $300, that is, up 200% ($100 x 300% = $300, up 200%)?

    Regards

    Anthony the learner
    Last edited by patran; 13-Jun-2013 at 12:32.

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    #2

    Re: Triple = up 200%

    Yes, triple is "times three." This is more of a math question than a language question. Yes, if something is three times what it once was, it is what it was plus two times that.

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    #3

    Re: Triple = up 200%

    Quote Originally Posted by patran View Post
    Dear teachers

    In the sentence "GDP per capita has tripled over the past decade", if the GDP per capital started with $100 ten years ago, so after tripling, should it be $300, that is, up 200% ($100 x 300% = $300, up BY 200%)?

    Regards

    Anthony the learner
    A 'by' would make the meaning clearer. Advertisers, keen to emphasize the favours they are doing to an unworthy world, tend to omit it.

    b

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