Last visit was: 12 Dec 2024, 07:36 It is currently 12 Dec 2024, 07:36
Home
GMAT
Messages
Tests
Schools
Reviews
Social
Chat
My Profile
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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
User avatar
Curly05
User avatar
Eternal Intern
Joined: 07 Jun 2003
Last visit: 06 Aug 2003
Posts: 297
Own Kudos:
1,509
Location: Lone Star State
Posts: 297
Kudos: 1,509
How many feet of solid copper wire with circular cross Updated on: 03 Aug 2003, 11:56
Originally posted by Curly05 on 03 Aug 2003, 10:35.
Last edited by Curly05 on 03 Aug 2003, 11:56, edited 1 time in total.
Kudos
Add Kudos
Bookmarks
Bookmark this Post
00:00
Start Timer
Pause Timer
Resume Timer
Show Answer
Hide
Show
History
N
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 4 sessions

History

Date
Time
Result
Not Attempted Yet
How many feet of solid copper wire with circular cross sections .008 foot in diameter can be made from 1 cubic foot of copper?


Do we start Is foot and feet the same?
Does area or circumference play a role?




Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Problem Solving (PS) Forum
Still interested in this question? Check out the "Best Topics" block below for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
avatar
stolyar
avatar
Joined: 03 Feb 2003
Last visit: 06 May 2014
Posts: 1,012
Own Kudos:
1,751
Posts: 1,012
Kudos: 1,751
How many feet of solid copper wire with circular cross 03 Aug 2003, 11:03
Kudos
Add Kudos
Bookmarks
Bookmark this Post
X is lenght of wire that is a cilinder

Volume=pi*0.0016*X=1
X=1/pi*0.0016=approx=1/0.005=1000/5=200 feet
User avatar
Curly05
User avatar
Eternal Intern
Joined: 07 Jun 2003
Last visit: 06 Aug 2003
Posts: 297
Own Kudos:
1,509
Location: Lone Star State
Posts: 297
Kudos: 1,509
How many feet of solid copper wire with circular cross 03 Aug 2003, 11:56
Kudos
Add Kudos
Bookmarks
Bookmark this Post
This is hard.

Actually you got my solution, except you picked up the cue of volume. :wink:

The answer is 62,500/ pi
User avatar
kpadma
User avatar
Joined: 03 Jul 2003
Last visit: 20 Oct 2004
Posts: 380
Own Kudos:
501
Posts: 380
Kudos: 501
How many feet of solid copper wire with circular cross 03 Aug 2003, 16:12
Kudos
Add Kudos
Bookmarks
Bookmark this Post
X is lenght of wire that is a cilinder

Volume=pi*(0.004)^2*X=1
X=1/pi*0.004*0.004= 62500/pi feet.

I guess, Saylor fell in the trap of faction multiplication.
Otherwise, His/Her approach is correct. I have also
fallen into similar kinds of traps before. Hope I won't fall
during my real GMAT.
avatar
stolyar
avatar
Joined: 03 Feb 2003
Last visit: 06 May 2014
Posts: 1,012
Own Kudos:
1,751
Posts: 1,012
Kudos: 1,751
How many feet of solid copper wire with circular cross 03 Aug 2003, 22:31
Kudos
Add Kudos
Bookmarks
Bookmark this Post
stolyar
X is lenght of wire that is a cilinder

Volume=pi*0.0016*X=1
X=1/pi*0.0016=approx=1/0.005=1000/5=200 feet


I missed a zero
its diameter is 0.008; its radius 0.004; squared = 0.000016
1/0.000016*pi=1/0.00005=100000/5=20000 feet



Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Problem Solving (PS) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
Moderators:
Bunuel
Math Expert
97845 posts
yashikaaggarwal
Senior Moderator - Masters Forum
3116 posts