What is the volume of rectangular box Q? (1) Two adjacent : GMAT Data Sufficiency (DS)
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 21 Jan 2017, 00:44

### 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

# What is the volume of rectangular box Q? (1) Two adjacent

Author Message
TAGS:

### Hide Tags

Manager
Joined: 18 Jun 2011
Posts: 58
Followers: 1

Kudos [?]: 121 [0], given: 0

What is the volume of rectangular box Q? (1) Two adjacent [#permalink]

### Show Tags

19 Jun 2011, 07:02
00:00

Difficulty:

25% (medium)

Question Stats:

78% (02:04) correct 22% (00:54) wrong based on 64 sessions

### HideShow timer Statistics

What is the volume of rectangular box Q?

(1) Two adjacent faces of the box Q have areas 10 and 12.

(2) Two opposite faces of box Q each have an area of 30.
[Reveal] Spoiler: OA
Current Student
Joined: 26 May 2005
Posts: 565
Followers: 18

Kudos [?]: 203 [0], given: 13

### Show Tags

19 Jun 2011, 09:14
guygmat wrote:
What is the volume of rectangular box Q?

(1) Two adjacent faces of the box Q have areas 10 and 12.

(2) Two opposite faces of box Q each have an area of 30.

Volume = l*b*h

st 1: 2 adjacent face has area of 10, 12

so the face can be 10,12,1 or 2, 5,6 ..each case the answer is different
hence in sufficicent

st 2: opposite faces have an area of 30... clearly insufficient

1 and 2 together

l^2b^2c^2 = 10*12*30
lbh = sqrt(10*12*30)
= 60
hence sufficient
Manager
Joined: 26 Jul 2010
Posts: 103
Location: India
Concentration: Operations, General Management
Schools: IIMA (M)
GMAT 1: 640 Q48 V29
GMAT 2: 670 Q49 V31
WE: Supply Chain Management (Military & Defense)
Followers: 6

Kudos [?]: 26 [0], given: 6

### Show Tags

20 Jun 2011, 06:39
[list=]=>[/list]consider a rectangle box with sides $$x,y,z$$
rephrase the question-- what is$$xyz ?$$

statement 1 :
suppose $$xy=10,xz=12$$ can we find out $$xyz ?$$ no
combining $$xy$$ and $$xz$$ === $$xy^2z=120$$
so 1 insuff

statement 2:
suppose $$xy/yz/xz=30$$
still cannot find xyz
2 insuff

combine 1 & 2
$$xy=10,xz=12 & yz=30$$
so $$(xyz)^2=3600$$ =:> $$xyz=60$$

i hope it helps
_________________

lets start again

Re: Volume D.S Problem   [#permalink] 20 Jun 2011, 06:39
Similar topics Replies Last post
Similar
Topics:
What is the volume of a certain box? 1 31 Jan 2016, 07:25
What is the volume of rectangular box B? (1) Two adjacent f 1 03 Jul 2013, 23:01
3 What is the volume of rectangular box B? (1) Two adjacent 6 14 Oct 2010, 03:51
What is the volume of a rectangular solid? 1) Two adjacent 3 05 Jul 2010, 08:25
4 What is the volume of a certain rectangular solid? (1) Two 6 24 Aug 2008, 16:29
Display posts from previous: Sort by