It is currently 25 Jun 2017, 19:06

### 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

# If a rectangular room measures 10 meters by 6 meters by 4

Author Message
TAGS:

### Hide Tags

Senior Manager
Joined: 17 Aug 2005
Posts: 388
Location: Boston, MA
If a rectangular room measures 10 meters by 6 meters by 4 [#permalink]

### Show Tags

12 Mar 2006, 13:21
3
This post was
BOOKMARKED
00:00

Difficulty:

15% (low)

Question Stats:

63% (01:40) correct 37% (00:33) wrong based on 403 sessions

### HideShow timer Statistics

If a rectangular room measures 10 meters by 6 meters by 4 meters, what is the volume of the room in cubic centimeters? (1 meter=100 centimeters)

A. 24,000
B. 240,000
C. 2,400,000
D. 24,000,000
E. 240,000,000
[Reveal] Spoiler: OA

Last edited by Bunuel on 13 Apr 2015, 03:49, edited 1 time in total.
EMPOWERgmat Instructor
Status: GMAT Assassin/Co-Founder
Affiliations: EMPOWERgmat
Joined: 19 Dec 2014
Posts: 9269
Location: United States (CA)
GMAT 1: 800 Q51 V49
GRE 1: 340 Q170 V170
Re: If a rectangular room measures 10 meters by 6 meters by 4 [#permalink]

### Show Tags

12 Apr 2015, 19:48
2
KUDOS
Expert's post
1
This post was
BOOKMARKED
Hi All,

This question has a great Number Property 'shortcut' built into it; when combined with the answer choices, you can avoid almost all of the 'math' in this question.

We're told that the dimensions of a rectangular room are 10 meters by 6 meters by 4 meters. We're asked for the volume of the room in cubic CENTIMETERS? (1 meter=100 centimeters).

Converting the dimensions from meters to centimeters is pretty straight-forward - we just have to multiply each number by 100:

10 meters by 6 meters by 4 meters becomes...

1000 cm by 600 cm by 400 cm

Notice that these three numbers include 7 zeroes. When we multiply them together, the correct answer MUST have at AT LEAST 7 zeroes. Looking at the answer choices, there's only one answer that fits:

[Reveal] Spoiler:
E

GMAT assassins aren't born, they're made,
Rich
_________________

760+: Learn What GMAT Assassins Do to Score at the Highest Levels
Contact Rich at: Rich.C@empowergmat.com

# Rich Cohen

Co-Founder & GMAT Assassin

# Special Offer: Save \$75 + GMAT Club Tests

60-point improvement guarantee
www.empowergmat.com/

***********************Select EMPOWERgmat Courses now include ALL 6 Official GMAC CATs!***********************

SVP
Joined: 14 Dec 2004
Posts: 1689
Re: If a rectangular room measures 10 meters by 6 meters by 4 [#permalink]

### Show Tags

12 Mar 2006, 13:24
1
KUDOS
E. 240,000,000

10*100*6*100*4*100 = 240,000,000
Intern
Joined: 02 Jun 2016
Posts: 41
Schools: Sloan '19 (II)
Re: If a rectangular room measures 10 meters by 6 meters by 4 [#permalink]

### Show Tags

15 Jul 2016, 16:00
1
KUDOS
1
This post was
BOOKMARKED
zxcvbnmas wrote:
Why cant we multiply 10 * 6 * 4 =240 meters first and then multiply 240 with centimeters?

You can, and that way is much easier in my opinion.

10 * 6 * 4 = 240 meters cubed

1 meter = 100 cm
1 meter squared = (100cm)^2 = 10000 cm sq.
1 meter cubed = (100cm)^3 = 1000000 cm cubed

So 240 meter cubed * 1000000 cm^3/1m^3 = answer E
buckkitty wrote:
If a rectangular room measures 10 meters by 6 meters by 4 meters, what is the volume of the room in cubic centimeters? (1 meter=100 centimeters)

A. 24,000
B. 240,000
C. 2,400,000
D. 24,000,000
E. 240,000,000

Sent from my SM-G928T using GMAT Club Forum mobile app
GMAT Club Legend
Joined: 09 Sep 2013
Posts: 15980
Re: If a rectangular room measures 10 meters by 6 meters by 4 [#permalink]

### Show Tags

12 Apr 2015, 18:10
Hello from the GMAT Club BumpBot!

Thanks to another GMAT 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.
_________________
Manager
Joined: 06 Jun 2014
Posts: 93
Location: United States
Concentration: Finance, General Management
GMAT 1: 450 Q27 V21
GPA: 3.47
Re: If a rectangular room measures 10 meters by 6 meters by 4 [#permalink]

### Show Tags

15 Jul 2016, 15:33
Why cant we multiply 10 * 6 * 4 =240 meters first and then multiply 240 with centimeters?
_________________

1) Kaplanprep 450 Q27 V21
2) Manhattan 530 Q35 V28
3) GmatPrep 450 Q33, V19
4) Veritas 460 Q31, V23
5) Veritas 440 Q 30, V21
6) Veritas 500 Q34, V 25
7) Gmat 420 Q27, V23
8) Veritas 520 Q36, V26 2/2
9) Veritas 540 Q37, V28 4/19
10)Manhattan 560 Q40, V28 4/28

Intern
Joined: 23 Sep 2016
Posts: 8
If a rectangular room measures 10 meters by 6 meters by 4 [#permalink]

### Show Tags

09 Oct 2016, 13:47
Quicker approach, step by step:

1) Volume in meters: 6 x 10 x 4 = 240 m³

2) 1 m = 100 cm = 10² cm
... so substitute "1 m = 100 cm" into 240 m³ and multiply

3) 240 m³ = 240 * (100)³
240 m³ = 240 * (10²)³
240 m³ = 240 * 10 ^ 6

so 240 m³ = 240 PLUS 6 zeroes
240 m³ = 240,000,000
If a rectangular room measures 10 meters by 6 meters by 4   [#permalink] 09 Oct 2016, 13:47
Similar topics Replies Last post
Similar
Topics:
A rectangular room that is 8 meters by 5 meters is to be carpeted usin 1 19 Apr 2017, 09:57
What is the perimeter, in meters, of a rectangular garden 6 meters.... 1 26 May 2016, 22:03
9 A rectangular floor that measures 8 meters by 10 meters is to be cover 12 17 Nov 2016, 09:31
2 A room is 15 meters long, 12 meters wide & 10 meters in heig 1 20 Aug 2014, 01:51
12 A rectangular floor measures 2 by 3 meters. There are 5 whit 9 12 Jul 2014, 03:40
Display posts from previous: Sort by