BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

★★★★★5.0559 reviews
GMATLiveTeach 7 seats left
Chris Peckover
NEXT LIVE COHORT

Oct 13 to Jan 7, 2027

with Chris Peckover

Schedule
Tue, Thu · 8:00 to 10:00 PM ET
Included
40 live hours + 6 months of GMAT OnDemand
  • Live instruction and real-time questions
  • Class recordings and assigned practice
View class & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

Schedule
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll
Limited cohort · enrollment openTarget Test Prep
GMATOnDemand Start anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 559 reviewsTarget Test Prep

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

Descriptive statistics problem

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
User avatar
Senior | Next Rank: 100 Posts
Posts: 52
Joined: Mon Apr 19, 2010 2:45 pm
Location: Los Angeles, CA
Thanked: 6 times
GMAT Score:710
by TheGmatTutor » Sun Jul 12, 2015 2:20 pm
A list of 7 numbers consists of the integers n, 3, 14, 8, 10, 12, and 4. If the median of the list is equal to the mean, what is the value of n?

(A) 3
(B) 4
(C) 5
(D) 6
(E) 8

Answer: C
If this post was helpful, please click the "Thanks" button.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |

GMAT/MBA Expert

User avatar
Elite Legendary Member
Posts: 10392
Joined: Sun Jun 23, 2013 6:38 pmFollowed by: 511 members
Location: Palo Alto, CA
Thanked: 2867 times
GMAT Score:800

by [email protected] » Sun Jul 12, 2015 6:40 pm
Hi TheGmatTutor,

This question can be solved in a couple of different ways; it would probably help a great deal to pay attention to the answer choices though.

The given numbers in the set of 7 are....3, 4, 8, 10, 12, 14.....and N. Since the answers are relatively small --> 3, 4, 5, 6 and 8, once that additional value (N) is included in the set, the MEDIAN WILL = 8.

Since we're told that the MEAN of the set = the MEDIAN of the set, we know that the MEAN = 8.

Thus, (3+4+8+10+12+14+N)/7 = 8.....

3+4+8+10+12+14+N = 56
51 + N = 56
N = 5

Final Answer: C

GMAT assassins aren't born, they're made,
Rich
Contact Rich at [email protected]
Image
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
GMAT Instructor
Posts: 15539
Joined: Tue May 25, 2010 12:04 pmFollowed by: 1906 members
Location: New York, NY
Thanked: 13060 times
GMAT Score:790

by GMATGuruNY » Sun Jul 12, 2015 7:04 pm
TheGmatTutor wrote:A list of 7 numbers consists of the integers n, 3, 14, 8, 10, 12, and 4. If the median of the list is equal to the mean, what is the value of n?

(A) 3
(B) 4
(C) 5
(D) 6
(E) 8
The median of the list is equal to the mean.
Since the list contains an ODD NUMBER OF INTEGERS, the median -- and thus the mean -- is equal to an integer value.

Sum = (number of integers)(mean).
Sum of all 7 integers = (7)(mean) = (7)(integer value) = multiple of 7.
Sum of the 6 known integers = 3+4+8+10+12+14 = 51.

Since the sum of the 6 known integers = 51, and the sum of all 7 integers must be a multiple of 7, the correct answer choice must yield a multiple of 7 when added to 51.
Only C works:
5 + 51 = 56 = multiple of 7.

The correct answer is C.
Private tutor exclusively for the GMAT and GRE, with over 20 years of experience.
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.

As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.

For more information, please email me (Mitch Hunt) at [email protected].
Student Review #1
Student Review #2
Student Review #3
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1