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

 It is currently 17 Jan 2019, 07:51

### 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

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

## Events & Promotions

###### Events & Promotions in January
PrevNext
SuMoTuWeThFrSa
303112345
6789101112
13141516171819
20212223242526
272829303112
Open Detailed Calendar
• ### The winning strategy for a high GRE score

January 17, 2019

January 17, 2019

08:00 AM PST

09:00 AM PST

Learn the winning strategy for a high GRE score — what do people who reach a high score do differently? We're going to share insights, tips and strategies from data we've collected from over 50,000 students who used examPAL.
• ### Free GMAT Strategy Webinar

January 19, 2019

January 19, 2019

07:00 AM PST

09:00 AM PST

Aiming to score 760+? Attend this FREE session to learn how to Define your GMAT Strategy, Create your Study Plan and Master the Core Skills to excel on the GMAT.

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

Author Message
TAGS:

### Hide Tags

Manager
Joined: 16 Jan 2018
Posts: 91
Location: New Zealand
A square of area 16m^2 is made from a metal wire of a thickness of 8mm  [#permalink]

### Show Tags

27 Aug 2018, 22:28
3
00:00

Difficulty:

75% (hard)

Question Stats:

31% (02:06) correct 69% (02:29) wrong based on 32 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
Joined: 20 Feb 2015
Posts: 795
Concentration: Strategy, General Management
Re: A square of area 16m^2 is made from a metal wire of a thickness of 8mm  [#permalink]

### Show Tags

28 Aug 2018, 00:16
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
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

30 Aug 2018, 05:54
Is there any better explanation to solve this problem???
VP
Joined: 09 Mar 2016
Posts: 1287
Re: A square of area 16m^2 is made from a metal wire of a thickness of 8mm  [#permalink]

### Show Tags

30 Aug 2018, 06:21
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 ?
Re: A square of area 16m^2 is made from a metal wire of a thickness of 8mm &nbs [#permalink] 30 Aug 2018, 06:21
Display posts from previous: Sort by