Cylinders

Expert replies

smclean23: Master | Next Rank: 500 Posts; Posts: 172; Joined: Mon Jun 23, 2008 12:00 pmFollowed by: 1 member; Thanked: 3 times

by smclean23 » Thu Jul 10, 2008 6:09 pm

A right cylindrical container with radius 2 meters and height 1 meter is filled to capacity with oil. How many empty right cylindrical cans, each with radius meter and height 4 meters, can be filled to capacity with the oil in this container?
(A) 1 (B) 2 (C) 4
(D) 8 (E) 16

Like this post

Source: Beat The GMAT — Problem Solving | Thu Jul 10, 2008 6:09 pm

pauls2929: Newbie | Next Rank: 10 Posts; Posts: 1; Joined: Thu Jul 10, 2008 8:20 am; Location: Boston

by pauls2929 » Fri Jul 11, 2008 7:39 am

The answer is A. If you look at the formula for the volume of a cylinder it's pie*h*r^2

In this case for the first cylinder the volume is pie*1*2^2 = 4*pie

The second cylinder is pie*4*1^2 = 4*pie (this is assuming the radius was one, your question didn't specify.) So the ratio is one to one between the two cylinders Ie you can fill it once [/img]

Like this post

Post new topic Post Reply

• Page 1 of 1

GMAT Course Reviews

560 reviews

1168 reviews

431 reviews

359 reviews

147 reviews

5/5

5 Star (560 Reviews)

"Target Test Prep is the closest to the official version of the GMAT exam, about 99% accuracy in terms of the quality and quantity of information. The course has excellently created singular sets of focused lessons and tests for every possible topic that one could come across in the official GMAT exam."

"The TTP course maximizes the efficiency of the time you spend studying. It will take time and effort but I could almost guarantee that if you complete the course exactly as it is laid out you will get an amazing score. They also have a very responsive team willing to help with any questions you might have."

"TTP has two things that I think no other test prep company offers: A teaching approach that reinforces understanding and an attitude that will give you the mental preparedness needed to succeed on the test. TTP gives you a deep understanding of the concept you need to know while teaching you how to think."

Write a Review