Last visit was: 22 Dec 2024, 23:22 It is currently 22 Dec 2024, 23:22
Decision Tracker
My Rewards
New comers' posts
New posts
Unanswered

Close

GRE Prep 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 GRE 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
PREVIOUS TOPIC
NEXT TOPIC

A worker at a recycling factory needs to produce 100 cm3 of

Tags :
Find Similar Topics  About  Add a Tag

Show Tags
Hide Tags

User avatar
D
Carcass
Verbal Expert
Joined: 18 Apr 2015
Posts: 30480
Own Kudos [?]: 36824 [2]
Given Kudos: 26100
Send PM
A worker at a recycling factory needs to produce 100 cm3 of [#permalink] New post   21 Mar 2019, 05:07
1
Expert Reply
1
Bookmarks
00:00

Question Stats:

24% (02:01) correct 75% (01:43) wrong based on 37 sessions

Hide Show timer Statistics

A worker at a recycling factory needs to produce 100 cm³ of aluminum for an order. Which of the following solid aluminum items alone would allow the worker to meet his or her goal?


Indicate all possible values.

A. hemisphere with a diameter 7.5 cm

B. A right cylinder with radius 4 cm and a height 2 cm

C. A cube with side length 4.5 cm

D. A right rectangular prism with width 5 cm, length 7 cm, and height 3 cm

E. A sphere with radius 3 cm
ShowHide Answer
Official Answer
B,D,E
User avatar
P
GreenlightTestPrep
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Own Kudos [?]: 12234 [3]
Given Kudos: 136
Send PM

Top Member of the Month
Re: A worker at a recycling factory needs to produce 100 cm3 of [#permalink] New post   26 Apr 2020, 14:17
3
Carcass wrote:
A worker at a recycling factory needs to produce 100 cm³ of aluminum for an order. Which of the following solid aluminum items alone would allow the worker to meet his or her goal?


Indicate all possible values.

A. hemisphere with a diameter 7.5 cm

B. A right cylinder with radius 4 cm and a height 2 cm

C. A cube with side length 4.5 cm

D. A right rectangular prism with width 5 cm, length 7 cm, and height 3 cm

E. A sphere with radius 3 cm


I'm not a big fan of this question. The GRE does not require students to know how to find the volume of a sphere (or a hemisphere)

Cheers,
Brent
User avatar
D
Carcass
Verbal Expert
Joined: 18 Apr 2015
Posts: 30480
Own Kudos [?]: 36824 [0]
Given Kudos: 26100
Send PM
Re: A worker at a recycling factory needs to produce 100 cm3 of [#permalink] New post   26 Apr 2020, 14:43
1
Expert Reply
I am a huge fan of you instead. I believe the GRE requires this.

Regards
avatar
mike1917
Intern
Intern
Joined: 24 Mar 2020
Posts: 34
Own Kudos [?]: 7 [0]
Given Kudos: 0
Send PM
Re: A worker at a recycling factory needs to produce 100 cm3 of [#permalink] New post   02 May 2020, 08:21
Can anyone clarify on this? does the FRE require to know the volume of the sphere or a hemisphere?

I have done tons of exercise and this is the first time during my prep that I encounter those volume
User avatar
P
GreenlightTestPrep
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Own Kudos [?]: 12234 [0]
Given Kudos: 136
Send PM

Top Member of the Month
Re: A worker at a recycling factory needs to produce 100 cm3 of [#permalink] New post   02 May 2020, 09:07
1
mike1917 wrote:
Can anyone clarify on this? does the FRE require to know the volume of the sphere or a hemisphere?

I have done tons of exercise and this is the first time during my prep that I encounter those volume


In the Official Guide to the GRE General Test, the test-makers provide formulas for finding the volume of a rectangular solid as well as the volume of a cylinder.
The formula for the volume of a sphere (or hemisphere) appears nowhere in the book.

If there were an official GRE question that required the volume of a sphere, you would be provided with the formula.

Cheers,
Brent
avatar
PPothepalli
Intern
Intern
Joined: 03 Apr 2020
Posts: 7
Own Kudos [?]: 5 [0]
Given Kudos: 0
Send PM
Re: A worker at a recycling factory needs to produce 100 cm3 of [#permalink] New post   05 May 2020, 23:00
Greenlight test Prep guy makes sense, there is no formula involved regarding the volume of the above mentioned shapes. DO NOT attempt the question, it is out of scope!
User avatar
Farina
Senior Manager
Senior Manager
Joined: 10 Feb 2020
Posts: 496
Own Kudos [?]: 354 [0]
Given Kudos: 299
Send PM
Re: A worker at a recycling factory needs to produce 100 cm3 of [#permalink] New post   13 Jun 2020, 13:43
In any case, kindly provide the solution :)
User avatar
D
Carcass
Verbal Expert
Joined: 18 Apr 2015
Posts: 30480
Own Kudos [?]: 36824 [0]
Given Kudos: 26100
Send PM
Re: A worker at a recycling factory needs to produce 100 cm3 of [#permalink] New post   13 Jun 2020, 14:01
Expert Reply
As Brent pointed out this question, basically, is not tested on the GRE.

So there is no need to discuss on it.

Regards
avatar
B
grenico
Manager
Manager
Joined: 05 Aug 2020
Posts: 101
Own Kudos [?]: 246 [0]
Given Kudos: 14
Send PM
Re: A worker at a recycling factory needs to produce 100 cm3 of [#permalink] New post   Updated on: 09 Aug 2020, 08:16
Farina wrote:
In any case, kindly provide the solution :)


The volume of a sphere is \(\frac{4}{3}\)*pi*\(r^3\)

From here, I would use 3.14 as a substitute for pi.

As was stated above, you don't need to know this formula for the GRE. Though I believe you do for the GMAT.

Originally posted by grenico on 08 Aug 2020, 15:07.
Last edited by grenico on 09 Aug 2020, 08:16, edited 1 time in total.
avatar
sukrut96
Manager
Manager
Joined: 09 Mar 2020
Posts: 164
Own Kudos [?]: 202 [0]
Given Kudos: 0
Send PM
Re: A worker at a recycling factory needs to produce 100 cm3 of [#permalink] New post   08 Aug 2020, 22:52
1
Farina wrote:
In any case, kindly provide the solution :)


Area of hemisphere = 2* π* r^2 (Diameter is given as 7.5, thus radius is 3.75) Hence, area is 88.3

Area of right cylinder = π * r^2 * h = 16 * 2 * 3.14 = 100.48

Area of cube = e^3 = (4.5)^3 = 91.1

Area of rectangular prism = 2(wl+hl+hw) = 2(5*7 + 3*7 + 3*5) = 142

Area of sphere = 4 *π *r^2 = 4 *3.14 *9 = 113.04

Hence B, D, E.
User avatar
bumpbot
GRE Prep Club Legend
GRE Prep Club Legend
Joined: 07 Jan 2021
Posts: 5095
Own Kudos [?]: 76 [0]
Given Kudos: 0
Send PM
Re: A worker at a recycling factory needs to produce 100 cm3 of [#permalink] New post   09 Aug 2021, 02:52
Hello from the GRE Prep Club BumpBot!

Thanks to another GRE Prep 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.
Prep Club for GRE Bot
gmatclubot
Re: A worker at a recycling factory needs to produce 100 cm3 of [#permalink]
09 Aug 2021, 02:52
Moderators:
adewale223
GRE Instructor
88 posts
bronaugust
GRE Forum Moderator
37 posts
BrushMyQuant
Moderator
1115 posts
VibhuAnurag
GRE Instructor
234 posts

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

Main navigation

Partners

GRE Resources

www.ets.org/gre | About | Terms and Conditions and Privacy Policy | Prep Club for GRE Rules | Contact