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Thread: SAT math multiples question

  1. #1

    SAT math multiples question

    How can we find the multiples of 4 between 278 and 679, inclusive?

  2. #2

    sat math sequences

    This can be solved using arithmetic sequences. We know that the nth term of an arithmetic sequence is given by the following formula:
    , where is the first term of the sequence (in our case is 280 since is the first multiple of 4 starting from 278) and d is the common difference of the progression (in our case the difference equals 4). The last term of the sequence is the number 676 which is the greater multiple of 4 less or equal than 679.

  3. #3
    Thanks miranda!

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