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The sum of an 84 number series is -7980 what is the sum of the first and last the numbers
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The sum of an 84 number series is -7980 what is the sum of the first and last the numbers

User Simon Martinelli
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Since, it is not mentioned which kind of series is it, I am assuming it to be an A.P. and will solve for the Same:
Sum = Number of terms (First Term+Last Term)/2
First Term+Last Term= -7980*2/84= -190
User Nikhil Vidhani
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