Forum Home > GMAT > Quantitative > Problem Solving (PS)
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.
Dec 1310:00 AM EST
-12:00 PM EST
Have you ever wondered how to score a PERFECT 805 on the GMAT? Meet Julia, a banking professional who used the Target Test Prep course to achieve this incredible feat. Julia's story is nothing short of an inspiration.
Dec 1410:00 AM EST
-12:00 PM EST
Think a 100% GMAT Verbal score is out of your reach? Target Test Prep will make you think again! Our course uses techniques such as topical study and spaced repetition to maximize knowledge retention and make studying simple and fun.
Dec 1411:00 AM IST
-01:00 PM IST
Attend this session to learn how to Deconstruct arguments, Pre-Think Author’s Assumptions, and apply Negation Test.- Dec 15
11:00 AM IST
-01:00 PM IST
Attend this free GMAT Algebra Webinar and learn how to master the most challenging Inequalities and Absolute Value problems with ease. 
Dec 1608:00 AM PST
-11:59 PM PST
GMAT Club 12 Days of Christmas is a 4th Annual GMAT Club Winter Competition based on solving questions. This is the Winter GMAT competition on GMAT Club with an amazing opportunity to win over $40,000 worth of prizes!
09 Oct 2018, 01:16
Kudos
Bookmarks
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
90% (01:10) correct
10%
(01:25)
wrong
based on 94
sessions
History
Date
Time
Result
Not Attempted Yet
In the figure, lines l and m are parallel. If y – z = 60, then what is the value of x ?
(A) 60
(B) 75
(C) 90
(D) 120
(E) 135
Attachment:
line.jpg [ 12.43 KiB | Viewed 6246 times ]
09 Oct 2018, 01:29
Kudos
Bookmarks
Bunuel
In the figure, lines l and m are parallel. If y – z = 60, then what is the value of x ?
(A) 60
(B) 75
(C) 90
(D) 120
(E) 135
Attachment:
line.jpg
y - z = 60
y = 60 +z
Now we know y and z has total value of 180.
60 +z + z = 180
z = 60
y = 120.
Since we are dealing with parallel line x must be 120.
The best answer is D.
Updated on: 17 May 2021, 07:30
Originally posted by BrentGMATPrepNow on 31 Mar 2020, 09:53.
Last edited by BrentGMATPrepNow on 17 May 2021, 07:30, edited 1 time in total.
Last edited by BrentGMATPrepNow on 17 May 2021, 07:30, edited 1 time in total.
Kudos
Bookmarks
Bunuel
In the figure, lines l and m are parallel. If y – z = 60, then what is the value of x ?
(A) 60
(B) 75
(C) 90
(D) 120
(E) 135
Attachment:
line.jpg
Key concept: When a line (aka transversal) intersects two parallel lines, we get the following equal angles:
So, from the given diagram....
....we can see that x = y
So, let's find the value of y
Does angles on a line add to 180 degrees, we can conclude that y + z = 180
We are also told that y – z = 60
When we ADD these two equations together we get: 2y = 240
Divide both sides by 2 to get: y = 120
Since we already concluded that x = y, we can now say x = 120
Answer: D
RELATED VIDEO
