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GMAT questions are rarely about doing 'lots of math', so it often helps to look for patterns in the way the prompt is designed (and avoid doing lots of math if possible).

Here, we're asked for the sum of a LOT of integers - and if we tried to add them all up 'in order', then that would take a really long time (and we might end up making mistakes). Given the range of integers (-203 to 200, inclusive), we should look for a pattern...

-1 + 1 = 0 -2 + 2 = 0 -3 + 3 = 0 Etc.

Notice all of the 0s that we'd end up with... and the numbers that would be 'left over'... -203, -202 and -201. The sum isn't that difficult to total now.

Re: If n is the sum of the integers from -203 to 200, inclusive, then n = [#permalink]

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02 Sep 2017, 22:21

This is a straight problem Numbers from 1 to 200 will cancel out number from -1 to -200 So we just have to add -201-202-203=-606 Hence A is the answer
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