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 GMAT 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.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 500,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

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:

A fence consists of m lengths of fence that are each n feet [#permalink]

Show Tags

09 Dec 2012, 11:53

2

This post was BOOKMARKED

00:00

A

B

C

D

E

Difficulty:

45% (medium)

Question Stats:

55% (02:38) correct
45% (01:15) wrong based on 101 sessions

HideShow timer Statistics

A fence consists of m lengths of fence that are each n feet long. A fence post separates each length of fence by its width of x feet. What is the total length of the fence including the fence posts on each end?

A. mn B. m(n + x) C. m(n + x) + x D. m(n + x) + 2x E. 2mn

A fence consists of m lengths of fence that are each n feet long. A fence post separates each length of fence by its width of x feet. What is the total length of the fence including the fence posts on each end?

A. mn B. m(n + x) C. m(n + x) + x D. m(n + x) + 2x E. 2mn

Notice that since a fence post separates each length of fence, then there will be m+1 posts, for example if there are m=2 fences, then there will be 3 posts: PFPFP. Thus the total length of the posts is (m+1)x.

The total length of the fence is mn, therefore the total length of the fence including the fence posts on each end is (m+1)x+mn=mx+x+mn=m(n+x)+x.

Re: A fence consists of m lengths of fence that are each n feet [#permalink]

Show Tags

11 Dec 2012, 12:37

Bunnuel I don't agree with you. For me if there are n = 2 fences, then according to the requirement of there being a post to seperate them, there ought to be n-1 post. So mn + (n-1)x But if the fence got to start and finish with a post, then yes you are right. But this is not what the stem says. I am getting things wrong? Please help. Brother Karamazov

Bunnuel I don't agree with you. For me if there are n = 2 fences, then according to the requirement of there being a post to seperate them, there ought to be n-1 post. So mn + (n-1)x But if the fence got to start and finish with a post, then yes you are right. But this is not what the stem says. I am getting things wrong? Please help. Brother Karamazov

I think, this is exactly what the stem is saying: "A fence post separates each length of fence..." "What is the total length of the fence including the fence posts on each end". _________________

Re: A fence consists of m lengths of fence that are each n feet [#permalink]

Show Tags

14 Dec 2012, 02:55

1

This post received KUDOS

Bunuel wrote:

akshayb2 wrote:

A fence consists of m lengths of fence that are each n feet long. A fence post separates each length of fence by its width of x feet. What is the total length of the fence including the fence posts on each end?

A. mn B. m(n + x) C. m(n + x) + x D. m(n + x) + 2x E. 2mn

Notice that since a fence post separates each length of fence, then there will be n+1 posts, for example if there are n=2 fences, then there will be 3 posts: PFPFP. Thus the total length of the posts is (n+1)x.

The total length of the fence is mn, therefore the total length of the fence including the fence posts on each end is (n+1)x+mn=nx+x+mn=m(n+x)+x.

Answer: C.

Hope it's clear.

Hi, could you please recheck the highlighted portion. I think there is a mistake.

A fence consists of m lengths of fence that are each n feet long. A fence post separates each length of fence by its width of x feet. What is the total length of the fence including the fence posts on each end?

A. mn B. m(n + x) C. m(n + x) + x D. m(n + x) + 2x E. 2mn

Notice that since a fence post separates each length of fence, then there will be n+1 posts, for example if there are n=2 fences, then there will be 3 posts: PFPFP. Thus the total length of the posts is (n+1)x.

The total length of the fence is mn, therefore the total length of the fence including the fence posts on each end is (n+1)x+mn=nx+x+mn=m(n+x)+x.

Answer: C.

Hope it's clear.

Hi, could you please recheck the highlighted portion. I think there is a mistake.

Re: A fence consists of m lengths of fence that are each n feet [#permalink]

Show Tags

14 Dec 2012, 03:17

Ans:

the total length of fence without the posts would be mn, now if there are 2 fences there would be 3 posts because PFPFP, so total posts= (n+1). Length of posts=(n+1)x. Total length of fence= nx+x+mn, therefore the answer is (C). _________________

Re: A fence consists of m lengths of fence that are each n feet [#permalink]

Show Tags

17 Dec 2012, 00:15

Firstly the term just "fence" is not clear. Now a "fence" can be a closed fence or it can be an open fence. If this kind of wording was given then it would have been more clear because..

Things we know for sure 1. A "post" separates the "fence lengths" 2. m = #of fence lengths, 1lenght = n feet long, total length of the fence alone = mn 3. z = # of posts, length of 1 post = x feet long, total length of all the posts alone = zx 4. Total length of fence and posts = mn + zx

The crucial factor here is z. we have to determine what z is.

Now i stress more on the wording here in the question is because 1. Closed fence (the ends are joined) When a fence is closed then the #of posts = #of fence lengths. Diagram it, it looks something like PFPF m = z . Therefore Total = mn + mx

2. Open Fence (the ends are not joined) What if the Fence starts wit a post Case 1 - PFPFP here x = m + 1. Total length = mn + x(m + 1) Case 2 - PFPFPF here x = m, Total Length = mn + mx

What if The fence starts with a Fence length Case 1 - FPFPF here x = m -1, Total length = mn + (m-1)x Case 2 - FPFP here x = m, Total Lenght = mn + mx

We have here three different kinds of answers and all of them are correct. The question is not specific.

Re: A fence consists of m lengths of fence that are each n feet [#permalink]

Show Tags

09 Feb 2014, 02:22

Bunuel wrote:

akshayb2 wrote:

A fence consists of m lengths of fence that are each n feet long. A fence post separates each length of fence by its width of x feet. What is the total length of the fence including the fence posts on each end?

A. mn B. m(n + x) C. m(n + x) + x D. m(n + x) + 2x E. 2mn

Notice that since a fence post separates each length of fence, then there will be m+1 posts, for example if there are m=2 fences, then there will be 3 posts: PFPFP. Thus the total length of the posts is (m+1)x.

The total length of the fence is mn, therefore the total length of the fence including the fence posts on each end is (m+1)x+mn=mx+x+mn=m(n+x)+x.

A fence consists of m lengths of fence that are each n feet long. A fence post separates each length of fence by its width of x feet. What is the total length of the fence including the fence posts on each end?

A. mn B. m(n + x) C. m(n + x) + x D. m(n + x) + 2x E. 2mn

Notice that since a fence post separates each length of fence, then there will be m+1 posts, for example if there are m=2 fences, then there will be 3 posts: PFPFP. Thus the total length of the posts is (m+1)x.

The total length of the fence is mn, therefore the total length of the fence including the fence posts on each end is (m+1)x+mn=mx+x+mn=m(n+x)+x.

Can you make a pictorial representation of your explanation? I'm not able to get it. Apologies for the pain.

It's already given. If m=2 fences there will be 3 posts: {Post}{Fence}{Post}{Fence}{Post}. Each fence is n feet and each post is x feet. _________________

Re: A fence consists of m lengths of fence that are each n feet [#permalink]

Show Tags

31 Jul 2016, 00:26

megha_2709 wrote:

How can we assume there is a post at the beginning . It could be the case : fence post fence post , in that case no of fences = no of posts.

Please help.

Regards Megha

It is given in the question "including the fence posts on each end". Hence, we need to consider fence post-fence-fence post -.. order. _________________

This is the kickoff for my 2016-2017 application season. After a summer of introspect and debate I have decided to relaunch my b-school application journey. Why would anyone want...

Check out this awesome article about Anderson on Poets Quants, http://poetsandquants.com/2015/01/02/uclas-anderson-school-morphs-into-a-friendly-tech-hub/ . Anderson is a great place! Sorry for the lack of updates recently. I...

Time is a weird concept. It can stretch for seemingly forever (like when you are watching the “Time to destination” clock mid-flight) and it can compress and...