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 < y - 2
[#permalink]
11 Dec 2017, 10:00
11 Dec 2017, 10:00
1
1
Expert Reply
1
Bookmarks
00:00
Question Stats:
75% (00:57) correct
24% (01:29) wrong based on 61 sessions
Hide Show timer Statistics
\(x < y - 2\)
A. Quantity A is greater.
B. Quantity B is greater.
C. The two quantities are equal
D. The relationship cannot be determined from the information given.
Quantity A |
Quantity B |
The average (arithmetic mean) of x and y |
\(y-1\) |
A. Quantity A is greater.
B. Quantity 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
x < y - 2
[#permalink]
11 Dec 2017, 12:49
11 Dec 2017, 12:49
1
1
Bookmarks
Carcass wrote:
\(x < y - 2\)
A. Quantity A is greater.
B. Quantity B is greater.
C. The two quantities are equal
D. The relationship cannot be determined from the information given.
Quantity A |
Quantity B |
The average (arithmetic mean) of x and y |
\(y-1\) |
A. Quantity A is greater.
B. Quantity B is greater.
C. The two quantities are equal
D. The relationship cannot be determined from the information given.
Show: :: OA
OA in 24h
We can solve this question using matching operations
Given:
Quantity A: The average (arithmetic mean) of x and y
Quantity B: y - 1
Apply definition of average to get:
Quantity A: (x + y)/2
Quantity B: y - 1
Multiply both quantities by 2 to get:
Quantity A: x + y
Quantity B: 2y - 2
Subtract y from both quantities to get:
Quantity A: x
Quantity B: y - 2
Since it is GIVEN that x < y - 2, we can see that Quantity B is greater.
Answer: B
RELATED VIDEO FROM OUR COURSE
gmatclubot
x < y - 2 [#permalink]
11 Dec 2017, 12:49
Moderators:
