GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 18 Sep 2018, 22:43

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

A square of area 16m^2 is made from a metal wire of a thickness of 8mm

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Manager
Manager
User avatar
S
Joined: 16 Jan 2018
Posts: 94
Location: New Zealand
Premium Member
A square of area 16m^2 is made from a metal wire of a thickness of 8mm  [#permalink]

Show Tags

New post 27 Aug 2018, 23:28
3
00:00
A
B
C
D
E

Difficulty:

  65% (hard)

Question Stats:

32% (02:04) correct 68% (02:28) wrong based on 25 sessions

HideShow timer Statistics

A square of area 16m^2 is made from a metal wire of a thickness of 8mm. What is the approximate total cost of the metal used? (Cost of metal is $6.25 per m^3)


A. $\(\frac{16 \pi}{10000}\)

B. $\(\frac{8\pi}{1000}\)

C. $\(\frac{16\pi}{1000}\)

D. $\(\frac{16\pi}{100}\)

E. $\(16\pi\)
Director
Director
User avatar
G
Joined: 20 Feb 2015
Posts: 728
Concentration: Strategy, General Management
Premium Member CAT Tests
Re: A square of area 16m^2 is made from a metal wire of a thickness of 8mm  [#permalink]

Show Tags

New post 28 Aug 2018, 01:16
blueviper wrote:
A square of area 16 \(m^2\) is made from a metal wire of a thickness of 8mm. What is the approximate total cost of the metal used? (Cost of metal is $6.25 per \(m^3\) )

A. $ \frac{16 \(\pi\) }{10000}

B. $ \frac{8 \(\pi\) }{1000}

C. $ \frac{16 \(\pi\) }{1000}

D. $ \frac{16 \(\pi\) }{100}

E. $ 16 \(\pi\)


perimeter of the square = length of the wire = 4*4=16
volume of wire = volume of cylinder with h=16m and r = 4 mm = 0.004 m
v = pi (0.004)^2 * 16 = pi * 16000000/16 = pi*1000000 m^3
price = pi * 1000000/6.25 = pi * 160000 = A
Intern
Intern
avatar
B
Joined: 04 Jul 2018
Posts: 10
Re: A square of area 16m^2 is made from a metal wire of a thickness of 8mm  [#permalink]

Show Tags

New post 30 Aug 2018, 06:54
Is there any better explanation to solve this problem??? :dazed :shocked
Director
Director
User avatar
P
Joined: 09 Mar 2016
Posts: 859
Re: A square of area 16m^2 is made from a metal wire of a thickness of 8mm  [#permalink]

Show Tags

New post 30 Aug 2018, 07:21
1
blueviper wrote:
A square of area 16 \(m^2\) is made from a metal wire of a thickness of 8mm. What is the approximate total cost of the metal used? (Cost of metal is $6.25 per \(m^3\) )

A. $ \frac{16 \(\pi\) }{10000}

B. $ \frac{8 \(\pi\) }{1000}

C. $ \frac{16 \(\pi\) }{1000}

D. $ \frac{16 \(\pi\) }{100}

E. $ 16 \(\pi\)



Bunuel is possible to format answer choices ? :)
_________________

In English I speak with a dictionary, and with people I am shy.

Re: A square of area 16m^2 is made from a metal wire of a thickness of 8mm &nbs [#permalink] 30 Aug 2018, 07:21
Display posts from previous: Sort by

A square of area 16m^2 is made from a metal wire of a thickness of 8mm

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  

Events & Promotions

PREV
NEXT


GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.