GRE Prep 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.
M is the mean of 5,x, and 7
[#permalink]
01 Feb 2024, 06:14
01 Feb 2024, 06:14
1
Expert Reply
00:00
Question Stats:
61% (01:08) correct
38% (01:49) wrong based on 13 sessions
Hide Show timer Statistics
M is the mean of 5,x, and 7
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Quantity A |
Quantity B |
\(M\) |
\(\frac{5+x+M+7}{4}\) |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Part of the project: The Butler-GRE Daily New Quant and Verbal Questions to Practice (2023) - Gain 20 Kudos & Get FREE Access to GRE Prep Club TESTS
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Free Materials for the GRE General Exam - Where to get it!!
GRE Geometry Formulas
GRE - Math Book
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Free Materials for the GRE General Exam - Where to get it!!
GRE Geometry Formulas
GRE - Math Book
Manager
Joined: 11 Nov 2023
Posts: 228
Given Kudos: 78
WE:Business Development (Advertising and PR)
M is the mean of 5,x, and 7
[#permalink]
01 Feb 2024, 15:05
01 Feb 2024, 15:05
1
1
Bookmarks
The mean of a set of terms = sum of terms / number of terms
Since M is the mean of 5, x, and 7, \(\frac{5+x+7}{3}= M\)
If you multiply both sides by 3 to get rid of the denominator, \(5+x+7 = 3M\)
We see that (5+x+7) is part of the numerator of Quantity B. Replace it with 3M.
\(\frac{5+x+M+7}{4} = \frac{3M + M}{4} = \frac{4M}{4} = M\)
Thus, Quantity B is also M.
Since M is the mean of 5, x, and 7, \(\frac{5+x+7}{3}= M\)
If you multiply both sides by 3 to get rid of the denominator, \(5+x+7 = 3M\)
We see that (5+x+7) is part of the numerator of Quantity B. Replace it with 3M.
\(\frac{5+x+M+7}{4} = \frac{3M + M}{4} = \frac{4M}{4} = M\)
Thus, Quantity B is also M.
gmatclubot
M is the mean of 5,x, and 7 [#permalink]
01 Feb 2024, 15:05
Moderators:
