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# What is the volume of a cube with edge e? (1) The value of e2 is 16

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Math Expert
Joined: 02 Sep 2009
Posts: 59561
What is the volume of a cube with edge e? (1) The value of e2 is 16  [#permalink]

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11 Sep 2018, 03:03
00:00

Difficulty:

35% (medium)

Question Stats:

67% (01:02) correct 33% (01:01) wrong based on 52 sessions

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What is the volume of a cube with edge e?

(1) The value of e^2 is 16.
(2) The ratio of the surface area of the cube to the volume of the cube is 3 : 2
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Joined: 07 Oct 2017
Posts: 252
Re: What is the volume of a cube with edge e? (1) The value of e2 is 16  [#permalink]

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11 Sep 2018, 03:34
Bunuel wrote:
What is the volume of a cube with edge e?

(1) The value of e2 is 16.
(2) The ratio of the surface area of the cube to the volume of the cube is 3 : 2
Target question : find the side of cube

St1) gives the side of the cube
Sufficient

St2) gives us side of cube

Sufficient

Thank you = Kudos
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Joined: 05 Jul 2017
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Location: India
Schools: IMD '21
Re: What is the volume of a cube with edge e? (1) The value of e2 is 16  [#permalink]

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06 Aug 2019, 04:29
But in statement 2 if a²/a³=1.5 -> 1.5a³-a²=0 -> a might be zero too right ?? And ofcourse it can be as e may be 0 itself

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Joined: 28 Mar 2017
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Location: Sweden
Concentration: Finance, Statistics
Re: What is the volume of a cube with edge e? (1) The value of e2 is 16  [#permalink]

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06 Aug 2019, 08:19
itspC wrote:
But in statement 2 if a²/a³=1.5 -> 1.5a³-a²=0 -> a might be zero too right ?? And ofcourse it can be as e may be 0 itself

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A cube cannot have a side of 0, as it would not exist if so were the case
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Re: What is the volume of a cube with edge e? (1) The value of e2 is 16  [#permalink]

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06 Aug 2019, 23:31
Why not it can be a cube of zero edge means it actually isn't a cube. Its just can be nothing in the sense. Contradiction
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Re: What is the volume of a cube with edge e? (1) The value of e2 is 16   [#permalink] 06 Aug 2019, 23:31
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