**Register for an Upcoming Free GRE Webinar**

Reserve your spot now!

Reserve your spot now!

# Official GRE Guide 3rd ed: Section 5 Quantitative Reasoning, Question 9

**1**

#### Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

#### In this Discussion

Before you post, please remember:

**Search for your topic**. A discussion may already be waiting for you!

**Focus on one topic per post**. For example, ask about just one practice exercise rather than two or more in a single post.

**Don’t post copyrighted material**. For example, don't post practice exercises from books or courses that must be purchased. Even some free stuff, including from ETS, may be copyrighted and so shouldn't be posted.

## Posts

146Record What You Know:

Quantity A

7w - 4

and

Quantity B

2w + 5

and

w > 1

try out a simple value, like w = 2.

w = 2, A: 10, B: 9

Right now, A is bigger, so cross out B and C.

Now for your second value, think what value for w that would lead to a different outcome. Perhaps try w = 4.

w = 4, A: 24, B: 13

Well, we've reached the same result, except what happened? The difference between A and B got bigger! A got dramatically larger than B.

This tells you your work is going in the wrong direction.

Consider the other kinds of numbers you might want to try, negatives, zero, fractions, etc.

Negatives and zero don't work because of the conditions given (w > 1), but what about fractions? Clearly 1/2 is excluded, but what about 1.5

Try it out.

w = 1.5, A: 6.5, B: 8

Now we've got it! B is greater, so the answer is D.