Events & Promotions
|
|
GMAT 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.
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
06 May 2022, 01:30
Kudos
Bookmarks
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
73% (01:58) correct
27%
(01:55)
wrong
based on 93
sessions
History
Date
Time
Result
Not Attempted Yet
a, b, c are three different numbers. None of the numbers equals the average of the other two.
If \(\frac{x}{{a+b-2c}}=\frac{y}{{b+c-2a}}=\frac{z}{{c+a-2b}}\) , then what is the value of \(x+y+z\) ?
(A) 5
(B) 3
(C) 1
(D) 0
(E) -1
Are You Up For the Challenge: 700 Level Questions
If \(\frac{x}{{a+b-2c}}=\frac{y}{{b+c-2a}}=\frac{z}{{c+a-2b}}\) , then what is the value of \(x+y+z\) ?
(A) 5
(B) 3
(C) 1
(D) 0
(E) -1
Are You Up For the Challenge: 700 Level Questions
06 May 2022, 07:32
Kudos
Bookmarks
ans:D
x+y+z=a+b-2c+b+c-2a+c+a-2b=0
x+y+z=a+b-2c+b+c-2a+c+a-2b=0
06 May 2022, 08:27
Kudos
Bookmarks
So the answer remains the same for different a, b, c combination. Let's pick
a=1
b=4
c=0
And we get:
x/5 = y/2 = z/(-7)
Pick x=5, y=2, z=-7
And we get the sum of of x, y, and z
5+2-7 = 0
We can choose (D) and move on.
a=1
b=4
c=0
And we get:
x/5 = y/2 = z/(-7)
Pick x=5, y=2, z=-7
And we get the sum of of x, y, and z
5+2-7 = 0
We can choose (D) and move on.
