# GMAT Problem Solving: Tips for Roman Numeral Questions

It’s finally time! You’ve waited all weekend for it, and we’re finally going to share the solution, and more importantly, helpful tips for dealing with GMAT Roman Numeral questions. If you didn’t see Friday’s practice question, take a look now:

#### GMAT Problem Solving

##### Roman Numeral Question

**If x, y, and z are consecutive odd integers, with x < y < z, then which of the following must be true?**

**I. x + y is even**

**III. xz is even**

**A) I only****B) II only****C) III only****D) I and II only****E) I, II, and III**

#### Strategy and Tips for Solving GMAT Roman Numeral Questions

**For Roman Numeral questions, start by finding the statement that appears most often in the answer choices, and evaluate it first.** Therefore, if it is untrue, you can eliminate the highest number of answer choices.

In this case, you want to start with statement II.

Next, pick numbers to represent your variables. Since x, y, and z are consecutive odd integers, try x = 3, y = 5, and z = 7. So, (3+7)/(5) = 2, which is an integer. To confirm, try a different set of numbers: x = 7, y = 9, and z = 11. So, (7+11)/(9) = 2, again an integer. Thus, statement II must be true, and your correct answer must contain statement II. So,** eliminate choices (A) and (C).**

Now consider statement I. If x = 3 and y = 5, x + y = 8. In fact, odd + odd is always even, so statement I must also be true. The correct answer must also contain statement I, so you can also **eliminate choice (B).**

Are you keeping track of the answer choices you are eliminating on your noteboard? That’s especially important on these Roman Numeral questions!

Finally, in statement III, xz is the product of two odd numbers, which is always odd. Thus, statement III cannot be true, so **(D) is the correct choice.**

## @KaplanGMATPrep

## July 13

Road to #bschool events are around the corner. Check out the Carlson School of Management profile to get ready http://t.co/rvXWxZk5Vz #GMAT

## Kaplan GMAT Prep

## July 10

Anyone thinking about heading to the midwest for bschool? Check out this week's bschool profile, University of Minnesota Carlson School of Management: http://bit.ly/16rXsKY

University of Minnesota: Carlson School of Management

blog.kaplangmat.com

The University of Minnesota's Carlson School of Management, located in the twin cities of Minneapolis and St. Paul, has a rich history and over 50,000...