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# The volume of a cylindrical tank that has a radius

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The volume of a cylindrical tank that has a radius [#permalink]  17 Mar 2018, 03:07
Expert's post
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Question Stats:

90% (00:19) correct 10% (00:15) wrong based on 20 sessions
 Quantity A Quantity B The volume of a cylindrical tank that has a radius of 2 meters and a height of 10 meters The volume of a cylindrical tank that has a radius of 1 meters and a height of 20 meters

A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
[Reveal] Spoiler: OA

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Director
Joined: 07 Jan 2018
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Re: The volume of a cylindrical tank that has a radius [#permalink]  21 Mar 2018, 22:19
1
KUDOS
Volume of a cylinder =π $$* radius(r)^2 * height(h)$$
qty A = π$$* 2^2 * 10 = 40 π$$
qty B = π $$* 1^1 * 20 = 20π$$

As π is a $$+ve$$ value cancel it from both sides
qty $$A =40$$
qty $$B =20$$
A>B
option A
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This is my response to the question and may be incorrect. Feel free to rectify any mistakes

GRE Instructor
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Re: The volume of a cylindrical tank that has a radius [#permalink]  02 May 2018, 07:14
Expert's post
Carcass wrote:
 Quantity A Quantity B The volume of a cylindrical tank that has a radius of 2 meters and a height of 10 meters The volume of a cylindrical tank that has a radius of 1 meters and a height of 20 meters

A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.

So, we get:
Quantity A: π(2)²(10)
Quantity B: π(1)²(20)

Simplify to get:
Quantity A: 40π
Quantity B: 20π

Cheers,
Brent
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Brent Hanneson – Creator of greenlighttestprep.com

Re: The volume of a cylindrical tank that has a radius   [#permalink] 02 May 2018, 07:14
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