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math

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the sum of 25 consecutive whole numbers is 1000. what is the smallest of the whole numbers?

  • math -

    First number is a, common difference is 1

    sum(25) = 1000
    (25/2)(2a + 24(1) ) = 1000
    2a + 24 = 80
    2a = 56
    a = 28

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