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31 May, 08:56

What is the common difference in the arithmic sequence 30,27,24,21,18

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  1. 31 May, 09:23
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    If you have two terms in a sequence, then a term decreased by the previous term=common difference

    so

    30 and 27

    27 decreased by 30 is - 3

    the common differce is - 3
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