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 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!
Dec 1511:00 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 17
09:00 AM PST
-10:00 AM PST
Join Manhattan Prep instructor Whitney Garner for a fun—and thorough—review of logic-based (non-math) problems, with a particular emphasis on Data Sufficiency and Two-Parts. - Dec 18
10:00 AM PST
-11:00 AM PST
Here is the essential guide to securing scholarships as an MBA student! In this video, we explore the various types of scholarships available, including need-based and merit-based options. - Dec 21
11:00 AM IST
-01:00 PM IST
Do RC/MSR passages scare you? e-GMAT is conducting a masterclass to help you learn – Learn effective reading strategies Tackle difficult RC & MSR with confidence Excel in timed test environment
19 Feb 2017, 07:58
Kudos
Bookmarks
C
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%
(01:23)
wrong
based on 148
sessions
History
Date
Time
Result
Not Attempted Yet
Attachment:
123.jpg [ 7.24 KiB | Viewed 4654 times ]
If wxyz ≠ 0, in what quadrant of the coordinate system above does point (x, y) lie?
(1) (x, z) lies in quadrant I.
(2) (w, y) lies in quadrant III.
19 Feb 2017, 10:00
Kudos
Bookmarks
SajjadAhmad
If wxyz ≠ 0, in what quadrant of the coordinate system above does point (x, y) lie?
(1) (x, z) lies in quadrant I.
(2) (w, y) lies in quadrant III.
(1) (x, z) lies in quadrant I.
(2) (w, y) lies in quadrant III.
Target question: In what quadrant of the coordinate system above does point (x, y) lie?
Statement 1: (x, z) lies in quadrant I
Since there is no information about the value of y, we cannot determine the quadrant in which the point (x,y) lies.
Since we cannot answer the target question with certainty, statement 1 is NOT SUFFICIENT
Statement 2: (w, y) lies in quadrant III.
Since there is no information about the value of x, we cannot determine the quadrant in which the point (x,y) lies.
Since we cannot answer the target question with certainty, statement 2 is NOT SUFFICIENT
Statements 1 and 2 combined
Statement 1 tells us that (x, z) lies in quadrant I. In quadrant I, the x-coordinate is always POSITIVE. So, x is POSITIVE
Statement 2 tells us that (w, y) lies in quadrant III. In quadrant III, the y-coordinate is always NEGATIVE. So, y is NEGATIVE
If x is POSITIVE and y is NEGATIVE, then the point (x,y) lies in quadrant IV
Since we can answer the target question with certainty, the combined statements are SUFFICIENT
Answer: C
Cheers,
Brent
ashwink
Current Student
Joined: 15 Mar 2014
Last visit: 20 Nov 2023
Posts: 169
Own Kudos:
Given Kudos: 12
Location: United Kingdom
Concentration: Technology, General Management
Schools: Kenan-Flagler'23 (M)
GPA: 4
19 Feb 2017, 21:54
Kudos
Bookmarks
C.
1. --> We can only say that x & z are positive. Not sufficient.
2. --> We can only say that w & y are negative. Not sufficient.
Combining both statements, we can find out that (x,y) lies in 4th quadrant since x is +ve and y is -ve.
1. --> We can only say that x & z are positive. Not sufficient.
2. --> We can only say that w & y are negative. Not sufficient.
Combining both statements, we can find out that (x,y) lies in 4th quadrant since x is +ve and y is -ve.
