What is the sum of 80 consecutive integers from -39 inclusive, in a increasing order?	Choose the correct choice: A) -29 B) 39 C) -30 D) 40 E) 60
From -39 to -1 --&gt; 39 nos.   zero --&gt; 1 number   from +1 to +39 --&gt; 39 nos.   When we add up nos. from -39 to +39 sum will be zero. Total 79 nos will be added.   80th number will be 40.   Sum of these 80 nos. = 40.   40 is the answer.
<result>D</result>
What is the sum of 80 consecutive integers from -39 inclusive, in a increasing order?