brunora wrote:

What is the sum of all 50 numbers in a list?

(1) The sum of positive numbers in the list 7.3

(2) The sum of negative numbers in the list is 10.6 less than the sum of the positive numbers.

Please read the spoiler below to understand my doubt.

OA is C.

I know this is a official exercise from GMAC and is probably right, but for me the answer is E. The statements do not give any information about neutral numbers (zeros)

Both the statements are individually insufficient, as they keep several probabilities open. Combining them gives an easy choice, so C is correct. Zeroes add neither to +ve nor -ve side so they don't matter.

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