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 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 2308:00 PM PDT
-09:00 PM PDT
Video explanations + diagnosis of 10 weakest areas + 150+ short videos + study plan!
Apr 2212:30 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.
18 Oct 2012, 10:51
Kudos
Bookmarks
E
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:
80% (03:08) correct
20%
(00:49)
wrong
based on 5
sessions
History
Date
Time
Result
Not Attempted Yet
The average of the first 5 terms of a set of numbers(S) is 6. If S has 12 terms and the average of the Set S is 7.5, find the average of the first 7 terms.
a)8.5
b)8.4
c)8.6
d)8.3
e)None Of these
a)8.5
b)8.4
c)8.6
d)8.3
e)None Of these
This Question is Locked Due to Poor Quality
Hi there,
The question you've reached has been archived due to not meeting our community quality standards. No more replies are possible here.
Looking for better-quality questions? Check out the 'Similar Questions' block below
for a list of similar but high-quality questions.
Want to join other relevant Problem Solving discussions? Visit our Problem Solving (PS) Forum
for the most recent and top-quality discussions.
Thank you for understanding, and happy exploring!
18 Oct 2012, 11:21
Kudos
Bookmarks
avaneeshvyas
The numbers in the given set must be ordered increasingly, otherwise the question makes no sense.
The sum of all the numbers in the set is 7.5 * 12 = 90, and the sum of the last 7 numbers is 90 - 5*6 = 60.
Therefore, the average of the last 7 numbers is 60/7. It follows that the 6th and the 7th number in the set must be no greater than 60/7.
Then the average of the first 7 numbers is at most (30 + 2*60/7)/7 = 330/49 < 8.
Answer E.
18 Oct 2012, 11:29
Kudos
Bookmarks
EvaJager
The question is worded the way it is typed. As far as the solution goes can we think of it as follows:
the Avg. of the last 8 terms is 60/7(As mentioned in the post above..)
Since the Avg. of the first 5 terms is 6, that means there is a deficit of 1.5 per number or (1.5*5)7.5 in total.
so the last 8 numbers should be not less than 60/7+7.5/7 = 67.5/7
Is the assumption in my solution wrong in someway...please point it out
