Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 26 Apr 2015, 11:34

### 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 June
Open Detailed Calendar

# PS Crystal Spheres

 Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS:
Current Student
Joined: 29 Jan 2005
Posts: 5244
Followers: 23

Kudos [?]: 178 [0], given: 0

PS Crystal Spheres [#permalink]  03 Sep 2006, 04:43
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
See attachment
Attachments

Crystal spheres.doc [68.5 KiB]

Senior Manager
Joined: 14 Jul 2005
Posts: 402
Followers: 1

Kudos [?]: 12 [0], given: 0

[#permalink]  03 Sep 2006, 06:54
E 7/8

Volume of cube = x^3
Volume of sphere = 4/3*pi*r^3

Say x=4, then d=2 and r=1

Vol of cube = 64
Vol of 2 spheres = 2*[4/3 * pi * 1^3] = 8 (approx)

Hence %age filled with powder = 56/64 = 7/8
CEO
Joined: 20 Nov 2005
Posts: 2913
Schools: Completed at SAID BUSINESS SCHOOL, OXFORD - Class of 2008
Followers: 18

Kudos [?]: 119 [0], given: 0

[#permalink]  03 Sep 2006, 23:23
x^3 - 2 * 4/3 * 22/7 * x^3/64
x^3 * (1-11/84) = x^3 * 75/84

approx 7/8
_________________

SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008

[#permalink] 03 Sep 2006, 23:23
Similar topics Replies Last post
Similar
Topics:
PS - Crystal Ball 3 25 Mar 2009, 12:12
PS - sphere 2 14 Dec 2006, 16:34
PS: Sphere 5 28 Sep 2006, 10:20
Two crystal spheres of diameter x/2 are being packed in a 1 24 Sep 2006, 11:42
Display posts from previous: Sort by

# PS Crystal Spheres

 Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group and phpBB SEO 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®.