GMAT Question of the Day – Data Sufficiency – Number Properties

If a, b, and c are not equal to zero, is \( abc > 0 \)?

(1) \( ab + ac > 1 \)

(2) \( ac + cb > 1 \)

Show the answer

Correct Answer: E.

Here’s a problem solving question also dealing with testing signs: How many of the integers that satisfy the inequality (x+2)(x+3)/(x−2) ≥ 0 are less than 5?

And another couple GMAT Question of the day examples featuring number properties/positive negative/signs

GMAT Question of the Day Number Properties/Signs

GMAT Question of the Day Absolute Value/Number Properties/Signs