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posted by cee cee Thursday, May 31, 2012 at 8:22pm.
the sum of 25 consecutive whole numbers is 1000. what is the smallest of the whole numbers?
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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