Last visit was: 22 Jul 2024, 21:46 It is currently 22 Jul 2024, 21:46
Close
GMAT 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

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.
Close
Request Expert Reply
Confirm Cancel
SORT BY:
Date
Tags:
Show Tags
Hide Tags
Intern
Intern
Joined: 14 Aug 2017
Posts: 34
Own Kudos [?]: 10 [0]
Given Kudos: 38
Location: India
Concentration: Operations, Social Entrepreneurship
Schools: (A)
GMAT 1: 610 Q48 V26
Send PM
Math Expert
Joined: 02 Sep 2009
Posts: 94517
Own Kudos [?]: 643133 [1]
Given Kudos: 86719
Send PM
Manager
Manager
Joined: 26 Mar 2019
Posts: 63
Own Kudos [?]: 104 [0]
Given Kudos: 142
Location: Azerbaijan
Concentration: Finance, Strategy
GMAT 1: 730 Q50 V38
Send PM
Intern
Intern
Joined: 14 Jun 2019
Posts: 14
Own Kudos [?]: 115 [0]
Given Kudos: 53
Send PM
Re: A straight picket fence is composed of x pickets each of whi [#permalink]
VeritasKarishma wrote:
nishantdoshi wrote:

i started it with making an equation just like you did but what i did is:

\(6(x-1)+\frac{1}{2}*x=.5(x-1)+\frac{1}{24}*x\)

but by solving this equation i couldn't come to the final equation which is in the options list.

can you help me out with it...i want to understand when to convert it before hand and when to wait for it . :/

HELP


Note that all options have a single x. So this should give you a hint that you have to further simplify your expression to bring the x's together. Once you do, it will match one option.


BUT why question didn't mention the conversion rate of inch to feet?
VP
VP
Joined: 10 Jul 2019
Posts: 1384
Own Kudos [?]: 579 [0]
Given Kudos: 1656
Send PM
Re: A straight picket fence is composed of x pickets each of whi [#permalink]
Caught way off guard (usually given the Unit Relationships such as 12 in = 1 foot on the GMAT).

Like a lot of people, I picked the answer in inches, rather than in feet.


If there are X Pickets in the Fence, there will be (X - 1) Gaps in between each Pair of Pickets.

for instance, say there were 4 pickets

I------gap 1--------I-------gap 2--------I--------gap 3----------I

There would be 3 Gaps.

Thus, the Length of the Picket Fence, IN INCHES =

L = X * 1/2 + (X - 1) * 6

L = X/2 + 6X - 6

L = X/2 + 12X/2 - 12/2

L = (13X - 12)/2 ---- inches

to convert to Feet: 12 inches = 1 foot

(13X - 12)/2 * (1 foot / 12 inches) = (13X - 12) / (2 * 12)


(13X - 12) / 24

-D-
User avatar
Non-Human User
Joined: 09 Sep 2013
Posts: 34044
Own Kudos [?]: 853 [0]
Given Kudos: 0
Send PM
Re: A straight picket fence is composed of x pickets each of whi [#permalink]
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
GMAT Club Bot
Re: A straight picket fence is composed of x pickets each of whi [#permalink]
   1   2 
Moderator:
Math Expert
94517 posts