If a sequence of 8 consecutive odd integers with increasing values has 3 as its 7th term, what is the sum of the terms of the sequence?  Answers:  A) -16  B) -8  C) -4  D) 4  E) 8
Let x be the first term.   Then x + 12 = 3 and x = -9   The sum is: x + (x+2) +...+ (x+14) =   8x + 2(1+2+...+7) = 8x + 2(7)(8) / 2 = 8(-9) + 56 = -16   The answer is -16.
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If a sequence of 8 consecutive odd integers with increasing values has 3 as its 7th term, what is the sum of the terms of the sequence?