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 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 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 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.
04 Oct 2010, 06:18
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:
59% (00:48) correct
41%
(00:47)
wrong
based on 258
sessions
History
Date
Time
Result
Not Attempted Yet
What is the greatest common divisor of distinct positive integers a and b?
(1) a and b share exactly one common factor.
(2) a and b are both prime numbers.
(1) a and b share exactly one common factor.
(2) a and b are both prime numbers.
04 Oct 2010, 06:35
Kudos
Bookmarks
eladshush
What is the greatest common divisor of distinct positive integers a and b?
1. a and b share exactly one common factor.
2. a and b are both prime numbers.
1. a and b share exactly one common factor.
2. a and b are both prime numbers.
What is the greatest common divisor of distinct positive integers a and b?
(1) a and b share exactly one common factor --> that one common factor must be 1, as it's the only so it's also the greatest. Sufficient.
(2) a and b are both prime numbers --> two distinct prime numbers share only one common factor: 1. Sufficient.
Answer: D.
04 Oct 2010, 09:02
Kudos
Bookmarks
A Typical GMAT example, where it makes a point that you have to read the question stem very carefully before answering the question. In 1, we have to note the word "exactly". Too good.
