GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 18 Sep 2018, 22:20

### 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

# In 1990, Sapir's Soup Company used a cylindrical can with radius 3 cen

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 49231
In 1990, Sapir's Soup Company used a cylindrical can with radius 3 cen  [#permalink]

### Show Tags

07 Sep 2018, 01:19
00:00

Difficulty:

15% (low)

Question Stats:

81% (01:24) correct 19% (00:42) wrong based on 27 sessions

### HideShow timer Statistics

In 1990, Sapir's Soup Company used a cylindrical can with radius 3 centimeters, filled to a height of 4 centimeters. If in 1995, Sapir's Soup Company changed the height of the can by 5 centimeters and filled it with the same amount of soup, which of the following could be the radius of the can in 1995?

A. 1
B. 2
C. 4
D. 8
E. 9

_________________
Director
Status: Learning stage
Joined: 01 Oct 2017
Posts: 839
WE: Supply Chain Management (Energy and Utilities)
Re: In 1990, Sapir's Soup Company used a cylindrical can with radius 3 cen  [#permalink]

### Show Tags

07 Sep 2018, 09:08
Bunuel wrote:
In 1990, Sapir's Soup Company used a cylindrical can with radius 3 centimeters, filled to a height of 4 centimeters. If in 1995, Sapir's Soup Company changed the height of the can by 5 centimeters and filled it with the same amount of soup, which of the following could be the radius of the can in 1995?

A. 1
B. 2
C. 4
D. 8
E. 9

Given volume of cylindrical can in 1990(r=3, h=4)=volume of cylindrical can in 1995(r=to be determined, h=4+5=9)
Or, $$\pi*3^2*4=\pi*r^2*9$$
Or, $$r^2=\frac{9*4}{9}$$
Or, $$r=\sqrt{4}=2$$

Ans. (B)
_________________

Regards,

PKN

Rise above the storm, you will find the sunshine

Intern
Joined: 14 Aug 2018
Posts: 16
Location: United States (WA)
GMAT 1: 670 Q43 V40
GMAT 2: 750 Q47 V47
GPA: 3.3
WE: Education (Education)
Re: In 1990, Sapir's Soup Company used a cylindrical can with radius 3 cen  [#permalink]

### Show Tags

07 Sep 2018, 09:12
I agree with the other posters on the math. If you are pressed for time or cannot remember the formula, the new r must be smaller than the old r, so flip a coin between A and B and move on.

Jayson Beatty
Indigo Prep
_________________

Jayson Beatty
Indigo Prep
http://www.indigoprep.com

Status: Preparing for GMAT
Joined: 25 Nov 2015
Posts: 928
Location: India
GPA: 3.64
In 1990, Sapir's Soup Company used a cylindrical can with radius 3 cen  [#permalink]

### Show Tags

09 Sep 2018, 06:45
Bunuel wrote:
In 1990, Sapir's Soup Company used a cylindrical can with radius 3 centimeters, filled to a height of 4 centimeters. If in 1995, Sapir's Soup Company changed the height of the can by 5 centimeters and filled it with the same amount of soup, which of the following could be the radius of the can in 1995?

A. 1
B. 2
C. 4
D. 8
E. 9

Initial height=4 cm
Changed height=9 cm
$$π*3^2*4 = πr^2*9$$
r=2 cm
_________________

Please give kudos, if you like my post

When the going gets tough, the tough gets going...

In 1990, Sapir's Soup Company used a cylindrical can with radius 3 cen &nbs [#permalink] 09 Sep 2018, 06:45
Display posts from previous: Sort by

# Events & Promotions

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne 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®.