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 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 2308:00 PM PDT
-09:00 PM PDT
Video explanations + diagnosis of 10 weakest areas + 150+ short videos + study plan!
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.
19 Sep 2019, 21:51
Kudos
Bookmarks
E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
65% (02:20) correct
35%
(02:20)
wrong
based on 217
sessions
History
Date
Time
Result
Not Attempted Yet
A set of thirteen numbers has an average (arithmetic mean) equal to 3. If two numbers are removed from the set and replaced with the number 7, the new average of the set is equal to 4. What could be the two numbers which were removed from the set?
A. 1.5 and -0.5
B. -1.5 and 0.5
C. 0 and 1.0
D. -1.0 and 0
E. -1.5 and -0.5
A. 1.5 and -0.5
B. -1.5 and 0.5
C. 0 and 1.0
D. -1.0 and 0
E. -1.5 and -0.5
19 Sep 2019, 22:06
Kudos
Bookmarks
x1+x2.....+x13=39, now remove any two numbers and add 7 to the series , I will remove x1,x2 and replace it with 7 , so now there are 12 numbers, avg=4 given ,so x3+x4....+x13=48-7=41,sub in first eq x1+x2+41=39,x1+x2=-2 , so answer is e
Posted from my mobile device
Posted from my mobile device
19 Sep 2019, 22:15
Kudos
Bookmarks
Average of 13 numbers is 3.
Thus, sum of all 13 numbers is 13×3 = 39
After, Removal of 2 numbers and replacing them with 7, the average of (new 12 numbers) is 4.
Sum of all 12 numbers is 12×4=48
Sum of 11 numbers = 48-7 = 41
Hence, Remaining 2 numbers should sum upto 39-41= -2
The only option that satisfies the above condition is E.
Hence, E.
Posted from my mobile device
Thus, sum of all 13 numbers is 13×3 = 39
After, Removal of 2 numbers and replacing them with 7, the average of (new 12 numbers) is 4.
Sum of all 12 numbers is 12×4=48
Sum of 11 numbers = 48-7 = 41
Hence, Remaining 2 numbers should sum upto 39-41= -2
The only option that satisfies the above condition is E.
Hence, E.
Posted from my mobile device
