Basic Numeracy/Quantitative Aptitude

Detailed Solution

300. Since the average of all 10 numbers is negative, so is their sum. However, the sum of the first six is positive, so the sum (and the average) of the others must be negative. Eliminate C, D. The answer is B.

301. Since 3% of a number is just a small part of it, 3% of 4% must be much less than 4%. Eliminate D, and probably C. The answer is B.

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