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=1/y
[#permalink]
01 Apr 2019, 13:41
01 Apr 2019, 13:41
Expert Reply
00:00
Question Stats:
92% (00:24) correct
7% (01:15) wrong based on 27 sessions
Hide Show timer Statistics
\(x = \frac{1}{y}\)
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.
Quantity A |
Quantity B |
\(x + 1 + \frac{1}{x}\) |
\(y+1+\frac{1}{y}\) |
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=1/y
[#permalink]
01 Apr 2019, 17:19
01 Apr 2019, 17:19
Carcass wrote:
\(x = \frac{1}{y}\)
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.
Quantity A |
Quantity B |
\(x + 1 + \frac{1}{x}\) |
\(y+1+\frac{1}{y}\) |
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.
Nice rule: 1/(a/b) = b/a
For example, 1/(3/4) = 4/3
Given:
QUANTITY A: x + 1 + 1/x
QUANTITY B: y + 1 + 1/y
Since we're told that x = 1/y, we can replace x with 1/y to get:
QUANTITY A: 1/y + 1 + 1/(1/y)
QUANTITY B: y + 1 + 1/y
Simplify Quantity A to get:
QUANTITY A: 1/y + 1 + y/1
QUANTITY B: y + 1 + 1/y
Simplify Quantity A (again!) to get:
QUANTITY A: 1/y + 1 + y
QUANTITY B: y + 1 + 1/y
Answer: C
Cheers,
Brent
gmatclubot
Re: x=1/y [#permalink]
01 Apr 2019, 17:19
Moderators:
