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.
Apr 2308:00 PM PDT
-09:00 PM PDT
Video explanations + diagnosis of 10 weakest areas + 150+ short videos + study plan!
Apr 2301:30 AM EDT
-02:30 AM EDT
Struggling with GMAT Verbal as a non-native speaker? Harsh improved his score from 595 to 695 in just 45 days—and scored a 99 %ile in Verbal (V88)! Learn how smart strategy, clarity, and guided prep helped him gain 100 points.
Apr 2512:30 AM EDT
-01:30 AM EDT
At one point, she believed GMAT wasn’t for her. After scoring 595, self-doubt crept in and she questioned her potential. But instead of quitting, she made the right strategic changes. The result? A remarkable comeback to 695. Check out how Saakshi did it.
Apr 2610:00 AM EDT
-11:00 AM EDT
The Target Test Prep course represents a quantum leap forward in GMAT preparation, a radical reinterpretation of the way that students should study. Try before you buy with a 5-day, full-access trial of the course for FREE!
Apr 2711:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
23 Apr 2018, 01:22
Kudos
Bookmarks
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
85%
(hard)
Question Stats:
40% (01:52) correct
60%
(01:39)
wrong
based on 97
sessions
History
Date
Time
Result
Not Attempted Yet
If b is an integer how many values of b satisfy a < b < c?
(1) a + b is an integer.
(2) c - a = 6.5.
(1) a + b is an integer.
(2) c - a = 6.5.
23 Apr 2018, 03:17
Kudos
Bookmarks
Bunuel
Given: b = Integer
Question: How many values of b satisfy a < b < c?
We need number of values that "b" can have to fulfil the given range and for that we need fix values of a and c.
St 1: a + b = Integer
This only tells us that "a" is an integer. No specific value of "a". Not sufficient.
St 2: c - a = 6.5
c = 6.5 + a
This gives us a relationship between a and c. We can try some values.
If a = 0, then c = 6.5 : b can be 1,2,3,4,5,6 - (6 values b can have)
If a = 1.5, then c = 8 : b can be 2,3,4,5,6,7 - (6 values b can have)
If a = -2, then c = 4.5 : b can be -1,0,1,2,3,4 - (6 values b can have)
Sufficient
(B)
23 Apr 2018, 05:12
Kudos
Bookmarks
Bunuel
Given b is an integer, but we dont know about a and c.
(1) If b is an integer, and a+b is also an integer, this means a is also an integer. But we dont know anything about c. Not sufficient.
(2) So c can be written as a+6.5. Now we are given that: a < b < a+6.5, and we have to find how many integer values of b will satisfy this inequality. We can test taking various cases:
If a=1, then c=7.5, and b can take 6 integer values (2 to 7)
If a=10, then c=16.5, again b can take 6 integer values (11 to 16)
If a=1.5, then c=8, again b can take 6 integer values (2 to 7)
But if a=1.6, then c=8.1, here b can take 7 integer values (2 to 8).
Basically if a is an integer, then c will be an integer ending in .5, and there will be 6 integer values for b. But if a is not an integer, then b might take 7 values also (as explained in last example). Not sufficient.
Combining the statements, now a must be an integer (from first statement), and c is a+6.5, so c is a number ending in .5.. here there will always be 6 integer values for b to take. Sufficient .
Hence C answer
