Post your question in the Comment section below, and we’ll answer it as fast as humanly possible.

- Video Course
- Video Course Overview
- General GRE Info and Strategies - 7 videos (free)
- Quantitative Comparison - 7 videos (free)
- Arithmetic - 42 videos
- Powers and Roots - 43 videos
- Algebra and Equation Solving - 78 videos
- Word Problems - 54 videos
- Geometry - 48 videos
- Integer Properties - 34 videos
- Statistics - 28 videos
- Counting - 27 videos
- Probability - 25 videos
- Data Interpretation - 24 videos
- Analytical Writing - 9 videos (free)
- Sentence Equivalence - 39 videos (free)
- Text Completion - 51 videos
- Reading Comprehension - 16 videos

- Study Guide
- Your Instructor
- Office Hours
- Extras
- Prices

## Comment on

Two Unknown Values## i can't understand why its

## Let's keep going from where

Let's keep going from where we have: x + y = (6.25)(8)

Evaluate to get: x + y = 50

Now that we know the sum is 50, how can we determine which value (x or y) is greater?

Consider these two case...

case i) x = 1 and y = 49 (this satisfies the condition that x + y = 50)

In this case, Quantity A is greater than Quantity B

case ii) x = 40 and y = 10 (this satisfies the condition that x + y = 50)

In this case, Quantity B is greater than Quantity A

Answer: D

Does that help?

Cheers,

Brent

## Add a comment