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Founder  Joined: 18 Apr 2015
Posts: 13919
GRE 1: Q160 V160 Followers: 315

Kudos [?]: 3687 , given: 12942

Expert's post 00:00

Question Stats: 97% (00:21) correct 2% (09:42) wrong based on 36 sessions GRE Instructor Joined: 10 Apr 2015
Posts: 3909
Followers: 164

Kudos [?]: 4777  , given: 70

1
KUDOS
Expert's post
Carcass wrote:
 Quantity A Quantity B x + 32y 32x + 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 can solve this question using matching operations

Given:
Quantity A: x + 32y
Quantity B: 32x + y

Subtract x from both quantities to get:
Quantity A: 32y
Quantity B: 31x + y

Subtract y from both quantities to get:
Quantity A: 31y
Quantity B: 31x

Divide both quantities by 31 to get:
Quantity A: y
Quantity B: x

Since we have no information about x and y, there's no way to determine which value is greater.

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_________________

Brent Hanneson – Creator of greenlighttestprep.com Intern Joined: 04 Oct 2018
Posts: 33
Followers: 0

Kudos [?]: 31 , given: 30

Just input numbers here.
If both x and y = 1 then the both sides are equal so, in this case ans is C.
But if x = 1 and y = 2 then the Left side is 65 and the right side is 34, in this case ans is A.
So the correct ans is D
Retired Moderator
Joined: 16 Sep 2019
Posts: 187
Followers: 1

Kudos [?]: 189 , given: 5

We can subtract either x or y from both sides.
Let's subtract y from both sides.

Quantity A - x + 31y
Quantity B - 32x

Now, put values, if x = y = 1
Quantity A = Quantity B

if x = 1, y = 2
Quantity A > Quantity B

We can see that the quantities are dependent on the values of x and y and without those values we cannot determine which quantity is bigger.

Hence, D

Carcass wrote:
 Quantity A Quantity B x + 32y 32x + 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.

_________________

If you like my solution, do give kudos! Re: x + 32Y   [#permalink] 02 Jan 2020, 22:17
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