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.
Nov 2007:30 AM PST
-08:30 AM PST
Learn what truly sets the UC Riverside MBA apart and how it helps in your professional growth
Nov 2211:00 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- Nov 23
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. 
Nov 2510:00 AM EST
-11:00 AM EST
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.
18 Jun 2020, 08:31
Kudos
Bookmarks
E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
65%
(hard)
Question Stats:
58% (02:04) correct
42%
(01:39)
wrong
based on 97
sessions
History
Date
Time
Result
Not Attempted Yet
If K is a sequence of n consecutive integers, then what is the value of n ?
(1) The sum of all terms in K is 21.
(2) The average (arithmetic mean) of all terms in K is less than 9.
Are You Up For the Challenge: 700 Level Questions
(1) The sum of all terms in K is 21.
(2) The average (arithmetic mean) of all terms in K is less than 9.
Are You Up For the Challenge: 700 Level Questions
18 Jun 2020, 08:43
Kudos
Bookmarks
Bunuel
Question: n = ?
STatement 1: SUm of terms = 21
21 = 3*7
i.e. K = {0, 1, 2, 3, 4, 5, 6} i.e. n = 7
or K = {6, 7, 8} i.e. n = 3
NOT SUFFICIENT
STatement 2: The average (arithmetic mean) of all terms in K is less than 9
i.e. K = {0, 1, 2, 3, 4, 5, 6} i.e. n = 7
or K = {6, 7, 8} i.e. n = 3
NOT SUFFICIENT
COmbining teh statements
i.e. K = {0, 1, 2, 3, 4, 5, 6} i.e. n = 7
or K = {6, 7, 8} i.e. n = 3
NOT SUFFICIENT
Answer: Option E
19 Jun 2020, 04:11
Kudos
Bookmarks
Bunuel
The sum of any list always equals n*average, where n is the number of terms. So from Statement 1, n*average = 21. But this is an equally spaced list, so average = median. So we know n*median = 21, and from this equation we can easily generate examples of lists that satisfy both Statements, by making n a divisor of 21. For example, n can be 3 and the median (and thus the average) can be 7, or n can be 7 and the median can be 3, among other possibilities (n can be 21 too, and if n is even, the median can be a non-integer so there are other possibilities besides these, but we don't need to consider them). So the answer is E.
