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07 Sep 2018, 01:19
Kudos
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
85% (01:46) correct
15%
(02:05)
wrong
based on 48
sessions
History
Date
Time
Result
Not Attempted Yet
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
A. 1
B. 2
C. 4
D. 8
E. 9
07 Sep 2018, 09:08
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Bunuel
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)
jaysonbeatty12
Joined: 14 Aug 2018
Last visit: 14 Dec 2023
Posts: 18
Own Kudos:
Given Kudos: 3
Location: United States (WA)
Schools: Cambridge Judge (A)
GMAT 1: 670 Q43 V40
GMAT 2: 750 Q47 V47
GPA: 3.3
WE:Education (Education)
07 Sep 2018, 09:12
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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
