Events & Promotions
|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Jun 0308:30 AM PDT
-09:30 AM PDT
In Episode 7 of our GMAT Ninja CR series, we are rounding up the oddballs, the misfits, and the format-benders: EXCEPT, Fill-In-The-Blanks, and other unusual Critical Reasoning question types. When you see a question that ends with a literal blank line
May 2910:00 AM IST
-11:00 PM IST
Start your journey with a fully customized action plan and work with a dedicated mentor to achieve a 735+ score.- Jun 04
08:30 AM PDT
-09:30 AM PDT
For most test takers, Data Insights is the most challenging section on the GMAT, with test takers scoring several points lower on average on DI than on Quant or Verbal and completing the section with less time to spare. - Jun 10
06:00 AM PDT
-06:15 PM PDT
Register for the GMAT Club Virtual MBA Spotlight Fair – the world’s premier event for serious MBA candidates. This is your chance to hear directly from Admissions Directors at nearly every Top 30 MBA program..
13 Nov 2005, 18:31
Kudos
Bookmarks
The volume of a cylinder is pi * r^2 * h, where r is its radius and h is its height.
we have two different cylinders, both cylinders have the same height = 8 cms
but cylinder 1 has a diameter of 4 and cylinder 2 has a diameter of 8.
we melt both cylinders and create a sphere, the volume of the sphere is 4/3*pi*r^3, what is the diameter of the sphere?
[/img]
we have two different cylinders, both cylinders have the same height = 8 cms
but cylinder 1 has a diameter of 4 and cylinder 2 has a diameter of 8.
we melt both cylinders and create a sphere, the volume of the sphere is 4/3*pi*r^3, what is the diameter of the sphere?
[/img]
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 Quantitative Questions 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!
13 Nov 2005, 19:02
Kudos
Bookmarks
I believe we should use the surface area instead of the volume. Here is how I approached the problem. Correct me if I am wrong.
Surface area of cylinder = 2 * pi * r^2 + 2 * pi * r * h
Surface area of sphere = 4 * pi * r^2
Surface area of sphere = SA of C1 + SA of C2
4 * pi * r^2 = 136 pi
r^2 = 34
r = sqrt(34)
Diameter = 2 * sqrt(34)
Btw, do we have OA?
Surface area of cylinder = 2 * pi * r^2 + 2 * pi * r * h
Surface area of sphere = 4 * pi * r^2
Surface area of sphere = SA of C1 + SA of C2
4 * pi * r^2 = 136 pi
r^2 = 34
r = sqrt(34)
Diameter = 2 * sqrt(34)
Btw, do we have OA?
