Question: Two Unknown Values

Comment on Two Unknown Values

i can't understand why its option 'D'
greenlight-admin's picture

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

Have a question about this video?

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

Change Playback Speed

You have the option of watching the videos at various speeds (25% faster, 50% faster, etc). To change the playback speed, click the settings icon on the right side of the video status bar.

Let me Know

Have a suggestion to make the course even better? Email me today!

Free “Question of the Day” emails!