GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
x and y
[#permalink]
30 Jun 2018, 10:05
30 Jun 2018, 10:05
2
2
Bookmarks
00:00
Question Stats:
62% (00:47) correct
37% (01:06) wrong based on 74 sessions
Hide Show timer Statistics
Attachment:
xyw.png [ 2.96 KiB | Viewed 4735 times ]
Quantity A |
Quantity B |
x |
y |
A The quantity in Column A is greater
B The quantity in Column B is greater
C The two quantities are equal
D The relationship cannot be determined from the information given
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: x and y
[#permalink]
04 Jul 2018, 06:12
04 Jul 2018, 06:12
1
amorphous wrote:
Attachment:
xyw.png
Quantity A |
Quantity B |
x |
y |
A The quantity in Column A is greater
B The quantity in Column B is greater
C The two quantities are equal
D The relationship cannot be determined from the information given
We'll use the fact that angles on a line add to 180°
So, for example: x + (w - 1) = 180°
Likewise, we can write: y + (w + 1) = 180°
Since both equations are set equal to 180°, we can conclude that: x + (w - 1) = y + (w + 1)
Remove brackets to get: x + w - 1 = y + w + 1
Subtract w from both sides to get: x - 1 = y + 1
Add 1 to both sides to get: x = y + 2
Now take the two quantities and replace x with y + 2
We get:
Quantity A: y + 2
Quantity B: y
At this point, we can see that y + 2 is GREATER THAN y
Answer: A
Cheers,
Brent
Re: x and y
[#permalink]
25 Apr 2020, 00:27
25 Apr 2020, 00:27
2
I think it faster just to use numbers here, make w = 90 we get w-1 = 89 and w+1 = 91 meaning x = 180-91 > 180-91 (don't need to actually calculate anything, we just subtract a bigger number from y making it smaller
