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
we will pick new questions that match your level based on your Timer History
Track Your Progress
every week, we’ll send you an estimated GRE score based on your performance
Practice Pays
we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
Your score will improve and your results will be more realistic
Is there something wrong with our timer?Let us know!
Grab 30% off any Target Test Prep GRE plan during our Flash Sale and join Brian and many other students who have used Target Test Prep to score high on the GRE. Just enter the coupon code FLASH30 at checkout to save big.
GRE Math Challenge #78-numbers in the list above are ordered
[#permalink]
03 May 2015, 01:43
Expert Reply
00:00
Question Stats:
93% (00:47) correct
6% (01:06) wrong based on 43 sessions
HideShow
timer Statistics
\(3, 7, 9, 14, x\)
The numbers in the list above are ordered from least to greatest. If the average (arithmetic mean) is 2 greater than the median, what is the value of x?
Re: GRE Math Challenge #78-numbers in the list above are ordered
[#permalink]
10 Aug 2016, 06:55
1
sandy wrote:
\(3, 7, 9, 14, x\)
The numbers in the list above are ordered from least to greatest. If the average (arithmetic mean) is 2 greater than the median, what is the value of x? (A) 22 (B) 20 (C) 17 (D) 16 (E) 15
Since we're told the numbers are ordered from least to greatest, we can see that the MEDIAN = 9 We're told that the average (arithmetic mean) is 2 greater than the median So, the MEAN = 11
In other words, (3 + 7 + 9 + 14 + x)/5 = 11 Multiply both sides by 11 to get: 3 + 7 + 9 + 14 + x = 55 Simplify: 33 + x = 55 Solve: x = 22