Author 
Message 
TAGS:

Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 43785

Brent and Alexa are freelance authors. Between them, they have been [#permalink]
Show Tags
25 Jul 2017, 21:39
Question Stats:
60% (01:46) correct 40% (01:39) wrong based on 115 sessions
HideShow timer Statistics



Director
Joined: 18 Aug 2016
Posts: 628
Concentration: Strategy, Technology
GMAT 1: 630 Q47 V29 GMAT 2: 740 Q51 V38

Re: Brent and Alexa are freelance authors. Between them, they have been [#permalink]
Show Tags
26 Jul 2017, 04:11
Bunuel wrote: Brent and Alexa are freelance authors. Between them, they have been published p times, with Alexa having been published n times more than Brent has. Which of the following represents the number of times that Alexa has been published?
A. (p+n)/2 B. (p−n)/2 C. p−n
D. p−2n E. (p+2n)/2 Alexa = A times Brent = B times \(A+B = P\) \(B=An\) \(A+An = p\) \(2A=p+n\) \(A=(p+n)/2\) Option A
_________________
We must try to achieve the best within us
Thanks Luckisnoexcuse



eGMAT Representative
Joined: 04 Jan 2015
Posts: 806

Re: Brent and Alexa are freelance authors. Between them, they have been [#permalink]
Show Tags
26 Jul 2017, 07:54
Bunuel wrote: Brent and Alexa are freelance authors. Between them, they have been published p times, with Alexa having been published n times more than Brent has. Which of the following represents the number of times that Alexa has been published?
A. (p+n)/2 B. (p−n)/2 C. p−n
D. p−2n E. (p+2n)/2 Solution • As per the given conditions
o \(A + B = p\) ……………..(i)
o \(A = n + B\)
o \(A – B = n\) ………..(ii) • Adding equation (i) and (ii), we get
o \(2A = p + n\)
o \(A = \frac{(p+n)}{2}\) • Thus, the correct answer is Option A. Thanks, Saquib Quant Expert eGMATRegister for our Free Session on Number Properties (held every 3rd week) to solve exciting 700+ Level Questions in a classroom environment under the realtime guidance of our Experts
_________________
 '4 out of Top 5' Instructors on gmatclub  70 point improvement guarantee  www.egmat.com



Veritas Prep GMAT Instructor
Joined: 16 Oct 2010
Posts: 7934
Location: Pune, India

Re: Brent and Alexa are freelance authors. Between them, they have been [#permalink]
Show Tags
26 Jul 2017, 09:13
Bunuel wrote: Brent and Alexa are freelance authors. Between them, they have been published p times, with Alexa having been published n times more than Brent has. Which of the following represents the number of times that Alexa has been published?
A. (p+n)/2 B. (p−n)/2 C. p−n
D. p−2n E. (p+2n)/2 Or just plug in values. Say they both have been published 10 times (p = 10) and Alexa has been published 10 times more i.e. Brent has been published 0 times. We need the option that gives 10 when p = n = 10 Only (A) does that.
_________________
Karishma Veritas Prep  GMAT Instructor My Blog
Get started with Veritas Prep GMAT On Demand for $199
Veritas Prep Reviews



Target Test Prep Representative
Status: Head GMAT Instructor
Affiliations: Target Test Prep
Joined: 04 Mar 2011
Posts: 1975

Re: Brent and Alexa are freelance authors. Between them, they have been [#permalink]
Show Tags
09 Aug 2017, 12:35
Bunuel wrote: Brent and Alexa are freelance authors. Between them, they have been published p times, with Alexa having been published n times more than Brent has. Which of the following represents the number of times that Alexa has been published?
A. (p+n)/2 B. (p−n)/2 C. p−n
D. p−2n E. (p+2n)/2 Let A and B denote the number of times Alexa and Brent has been published, respectively. Since they have been published p times, A + B = p. Since the number of publications of Alexa is n more than Brent, A = B + n. Let’s write the second equality as B = A  n. Let’s substitute this expression for B in the first equation: A + (A  n) = p 2A = p + n A = (p + n)/2 Answer: A
_________________
Jeffery Miller
Head of GMAT Instruction
GMAT Quant SelfStudy Course
500+ lessons 3000+ practice problems 800+ HD solutions



Manager
Joined: 14 Oct 2012
Posts: 179

Brent and Alexa are freelance authors. Between them, they have been [#permalink]
Show Tags
08 Oct 2017, 09:07
1
This post received KUDOS
A+Bp times Bb times Case  1: Alexa having been published n times more than Brent has. Anb times (n times more than Brent!!!)
p = b + nb nb = pn  C Case  2: Alexa having been published n more times than Brent has. An+b times (n more times than Brent!!!)
p = b + n + b 2b = pn b = [(pn)/2]  A Bunuel, Vyshak, Engr2012, mikemcgarry, Abhishek009, VeritasPrepKarishma, Skywalker18, msk0657, abhimahnaI got this question wrong because i followed case1, am i missunderstanding something? Please clarify. Thanks



Verbal Forum Moderator
Status: Greatness begins beyond your comfort zone
Joined: 08 Dec 2013
Posts: 1907
Location: India
Concentration: General Management, Strategy
GPA: 3.2
WE: Information Technology (Consulting)

Brent and Alexa are freelance authors. Between them, they have been [#permalink]
Show Tags
08 Oct 2017, 09:24
1
This post received KUDOS
Bunuel wrote: Brent and Alexa are freelance authors. Between them, they have been published p times, with Alexa having been published n times more than Brent has. Which of the following represents the number of times that Alexa has been published?
A. (p+n)/2 B. (p−n)/2 C. p−n
D. p−2n E. (p+2n)/2 manishtank1988 wrote: A+Bp times Bb times Case  1: Alexa having been published n times more than Brent has. Anb times (n times more than Brent!!!)
p = b + nb nb = pn  C Case  2: Alexa having been published n more times than Brent has. An+b times (n more times than Brent!!!)
p = b + n + b 2b = pn b = [(pn)/2]  A Bunuel, Vyshak, Engr2012, mikemcgarry, Abhishek009, VeritasPrepKarishma, Skywalker18, msk0657, abhimahnaI got this question wrong because i followed case1, am i missunderstanding something? Please clarify. Thanks Hi manishtank1988 , Between them, they have been published p times, with Alexa having been published n times more than Brent has . A = b+n (since Alexa having been published n times more than Brent has  we add here ) If question was that Alexa was published n times the number of times Brent was published, then A = b*n is correct B = b 2b+n = p => b = (pn)/2 A = (pn)/2 +n = (p+n)/2 Answer A Hope this helps!!
_________________
When everything seems to be going against you, remember that the airplane takes off against the wind, not with it.  Henry Ford The Moment You Think About Giving Up, Think Of The Reason Why You Held On So Long +1 Kudos if you find this post helpful



Manager
Joined: 30 Dec 2016
Posts: 123

Re: Brent and Alexa are freelance authors. Between them, they have been [#permalink]
Show Tags
08 Oct 2017, 09:33
Let A be the times Alexa has been published and let B be the times Brent has been published. They have been published p times i.e. A+B = p Now, Alexa has been published n times more than Brent. > A= B+n > B = A  n Substituting value of B in original equation. A+An = p > 2A = p+n > A=(p+n)/2 Answer A. Sent from my SMN9007 using GMAT Club Forum mobile app
_________________
Regards SandySilva
____________ Hit kudos if my post helped (:



Manager
Joined: 14 Oct 2012
Posts: 179

Re: Brent and Alexa are freelance authors. Between them, they have been [#permalink]
Show Tags
08 Oct 2017, 10:11
Skywalker18 wrote: Bunuel wrote: Brent and Alexa are freelance authors. Between them, they have been published p times, with Alexa having been published n times more than Brent has. Which of the following represents the number of times that Alexa has been published?
A. (p+n)/2 B. (p−n)/2 C. p−n
D. p−2n E. (p+2n)/2 manishtank1988 wrote: A+Bp times Bb times Case  1: Alexa having been published n times more than Brent has. Anb times (n times more than Brent!!!)
p = b + nb nb = pn  C Case  2: Alexa having been published n more times than Brent has. An+b times (n more times than Brent!!!)
p = b + n + b 2b = pn b = [(pn)/2]  A Bunuel, Vyshak, Engr2012, mikemcgarry, Abhishek009, VeritasPrepKarishma, Skywalker18, msk0657, abhimahnaI got this question wrong because i followed case1, am i missunderstanding something? Please clarify. Thanks Hi manishtank1988 , Between them, they have been published p times, with Alexa having been published n times more than Brent has . A = b+n (since Alexa having been published n times more than Brent has  we add here ) If question was that Alexa was published n times the number of times Brent was published, then A = b*n is correctB = b 2b+n = p => b = (pn)/2 A = (pn)/2 +n = (p+n)/2 Answer A Hope this helps!! Thanks Skywalker18 got it



Intern
Joined: 26 Dec 2016
Posts: 27

Re: Brent and Alexa are freelance authors. Between them, they have been [#permalink]
Show Tags
15 Dec 2017, 14:35
EgmatQuantExpert wrote: Bunuel wrote: Brent and Alexa are freelance authors. Between them, they have been published p times, with Alexa having been published n times more than Brent has. Which of the following represents the number of times that Alexa has been published?
A. (p+n)/2 B. (p−n)/2 C. p−n
D. p−2n E. (p+2n)/2 Solution • As per the given conditions
o \(A + B = p\) ……………..(i)
o \(A = n + B\)
o \(A – B = n\) ………..(ii) • Adding equation (i) and (ii), we get
o \(2A = p + n\)
o \(A = \frac{(p+n)}{2}\) • Thus, the correct answer is Option A. Thanks, Saquib Quant Expert eGMAT I got this question wrong because I chose "pn/2." I substituted A (B+n) into B+A=p. I don't understand why we have to switch A=B+n to B=An....someone please clarify this for me. Thanks!



Math Expert
Joined: 02 Sep 2009
Posts: 43785

Re: Brent and Alexa are freelance authors. Between them, they have been [#permalink]
Show Tags
15 Dec 2017, 23:29
rnz wrote: EgmatQuantExpert wrote: Bunuel wrote: Brent and Alexa are freelance authors. Between them, they have been published p times, with Alexa having been published n times more than Brent has. Which of the following represents the number of times that Alexa has been published?
A. (p+n)/2 B. (p−n)/2 C. p−n
D. p−2n E. (p+2n)/2 Solution • As per the given conditions
o \(A + B = p\) ……………..(i)
o \(A = n + B\)
o \(A – B = n\) ………..(ii) • Adding equation (i) and (ii), we get
o \(2A = p + n\)
o \(A = \frac{(p+n)}{2}\) • Thus, the correct answer is Option A. Thanks, Saquib Quant Expert eGMAT I got this question wrong because I chose "pn/2." I substituted A (B+n) into B+A=p. I don't understand why we have to switch A=B+n to B=An....someone please clarify this for me. Thanks! If you substitute A = n + B into A + B = p, you get: (n + B) + B = p > 2B = p  n > B = (p  n)/2. Yes, but you are answering WRONG question. The question asks: Which of the following represents the number of times that Alexa has been published? You found the number of times that Brent has been published: B = (p  n)/2. Hope it's clear.
_________________
New to the Math Forum? Please read this: Ultimate GMAT Quantitative Megathread  All You Need for Quant  PLEASE READ AND FOLLOW: 12 Rules for Posting!!! Resources: GMAT Math Book  Triangles  Polygons  Coordinate Geometry  Factorials  Circles  Number Theory  Remainders; 8. Overlapping Sets  PDF of Math Book; 10. Remainders  GMAT Prep Software Analysis  SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS)  Tricky questions from previous years.
Collection of Questions: PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.
What are GMAT Club Tests? Extrahard Quant Tests with Brilliant Analytics




Re: Brent and Alexa are freelance authors. Between them, they have been
[#permalink]
15 Dec 2017, 23:29






