|
|
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.
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:
86% (00:39) correct
14%
(00:37)
wrong
based on 310
sessions
History
Date
Time
Result
Not Attempted Yet
If z is an integer, is z even?
(1) z/2 is even.
(2) 3z is even.
(1) z/2 is even.
(2) 3z is even.
Hi everyone,
This may be a very easy question but I need help logically breaking down. Any help would be very much appreciated. This is from a CAT from the MGMAT course.
The answer is D.
The the question is phrased the only parameter is that Z is an integer, so no fractions/decimals. When you are testing (1) and (2) are you only testing with an even number because it states "is z even"?
thanks!
This may be a very easy question but I need help logically breaking down. Any help would be very much appreciated. This is from a CAT from the MGMAT course.
The answer is D.
The the question is phrased the only parameter is that Z is an integer, so no fractions/decimals. When you are testing (1) and (2) are you only testing with an even number because it states "is z even"?
thanks!
Pure algebraic questions like this one are no longer part of the GMAT Data Sufficiency syllabus.
For relevant Data Sufficiency questions, please check the Data Sufficiency forum:
Data Sufficiency Forum
Data Sufficiency Forum
29 Oct 2013, 00:10
Kudos
Bookmarks
If z is an integer, is z even?
(1) z/2 is even --> \(\frac{z}{2}=even\) --> \(z=2*even=even\). Sufficient.
(2) 3z is even --> \(3z=odd*z=even\), since given that z is an integer, then in order odd*z to be even z must an even integer. Sufficient.
Answer: D.
Hope it's clear.
(1) z/2 is even --> \(\frac{z}{2}=even\) --> \(z=2*even=even\). Sufficient.
(2) 3z is even --> \(3z=odd*z=even\), since given that z is an integer, then in order odd*z to be even z must an even integer. Sufficient.
Answer: D.
Hope it's clear.
19 Apr 2020, 08:37
Kudos
Bookmarks
If z is an integer, is z even?
(1) z/2 is even.
so, z=2*even = even sufficient
(2) 3z is even.
3z= 4 , z=4/3 (rejected because z is an integer )
3z= 6, z=6/3 (accepted)
so, z= even sufficient
correct answer D
(1) z/2 is even.
so, z=2*even = even sufficient
(2) 3z is even.
3z= 4 , z=4/3 (rejected because z is an integer )
3z= 6, z=6/3 (accepted)
so, z= even sufficient
correct answer D
