GMAT Section 2 Quantitative

GMAT Section 2 Quantitative practice questions, page 29 of 29, with answer review and explanations.

Question 141

If A and B are positive integers, which of the following expressions is not an integer for certain?

  1. (2A2 – 2B2)/(A+B).
  2. (6B + 8A)/(3B + 4A).
  3. (3A – B)/(B - 3A).
  4. (A + B)/(A2 + B2 + 2AB).
  5. (A2 – B2)/(A - B).