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!
Updated on: 17 Apr 2022, 02:04
Originally posted by nayasnayas on 05 May 2014, 21:29.
Last edited by Bunuel on 17 Apr 2022, 02:04, edited 3 times in total.
Last edited by Bunuel on 17 Apr 2022, 02:04, edited 3 times in total.
Renamed the topic and edited the question.
Kudos
Bookmarks
C
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:
64% (01:23) correct
36%
(01:15)
wrong
based on 289
sessions
History
Date
Time
Result
Not Attempted Yet
06 May 2014, 02:20
Kudos
Bookmarks
Is n < 0 ?
(1) m < n. n is greater than some number m. This is clearly insufficient to say whether n is negative. Not sufficient.
(2) -n < m --> 0 < m + n. The sum of n and some number m is positive. This is also insufficient to say whether n is negative. Not sufficient.
(1)+(2) We can sum the inequalities with the signs in the same direction:
m + (-n) < n + m;
2n > 0;
n > 0.
Sufficient.
Answer: C.
(1) m < n. n is greater than some number m. This is clearly insufficient to say whether n is negative. Not sufficient.
(2) -n < m --> 0 < m + n. The sum of n and some number m is positive. This is also insufficient to say whether n is negative. Not sufficient.
(1)+(2) We can sum the inequalities with the signs in the same direction:
m + (-n) < n + m;
2n > 0;
n > 0.
Sufficient.
Answer: C.
General Discussion
19 Oct 2017, 01:39
Kudos
Bookmarks
(1) m < n .. obviously not sufficient
(2) -n < m.. not sufficient but if we multiply both sides by -1 we get
n > -m
Combine the two statements: n is greater than both m and -m. So obviously 'n' can be neither 0 nor less than 0 (if n is zero it cannot be simultaneously greater than positive and negative of another number. If n is less than 0 then it will obviously be less than whichever out of m and -m is positive). So n is > 0. Sufficient to answer. So C answer
(2) -n < m.. not sufficient but if we multiply both sides by -1 we get
n > -m
Combine the two statements: n is greater than both m and -m. So obviously 'n' can be neither 0 nor less than 0 (if n is zero it cannot be simultaneously greater than positive and negative of another number. If n is less than 0 then it will obviously be less than whichever out of m and -m is positive). So n is > 0. Sufficient to answer. So C answer
