GRE Question of the Day (November 9th)

Math

If \({x^2 +2x -15 = -m}\), where x is an integer from -10 to 10, inclusive, what is the probability that m is greater than 0?

A. \({\frac{{2}}{{7}}}\)

B. \({\frac{{1}}{{3}}}\)

C. \({\frac{{7}}{{20}}}\)

D. \({\frac{{2}}{{5}}}\)

E. \({\frac{{3}}{{7}}}\)

Correct Answer - B - (click and drag your mouse to see the answer)

Question Discussion & Explanation