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Is x^3 equal to 125 ?

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Joined: 01 Sep 2010
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Kudos [?]: 9074 [0], given: 1154

Is x^3 equal to 125 ? [#permalink]

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New post 16 Sep 2012, 11:26
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Question Stats:

65% (00:20) correct 35% (00:21) wrong based on 132 sessions

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Last edited by carcass on 16 Sep 2012, 18:14, edited 1 time in total.

Kudos [?]: 9074 [0], given: 1154

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Kudos [?]: 193 [0], given: 46

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Re: Is x^3 equal to 125 ? [#permalink]

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New post 16 Sep 2012, 11:46
Answer should be E.

Given, x is somewhere between 4 and 6. Not given that x is integer.

x could be 5, in which case, x^3 is 125 OR
x could be 4.5 or 5.5, in which case x^3 is not 125

Kudos [?]: 193 [0], given: 46

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Re: Is x^3 equal to 125 ? [#permalink]

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New post 16 Sep 2012, 11:48
Answer is E.

x^3 = 125 ==> x=5
(1) x>4 implies x may or may not be 5...
(2) x<6 also implies x may or may not be 5...

even if we combine both the statements, x can be any real number between 4 and 6....so it can be either 5 or any other number...
Hence, both statements combined are not sufficient.

Kudos [?]: 40 [0], given: 11

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Joined: 01 Sep 2010
Posts: 3355

Kudos [?]: 9074 [0], given: 1154

Re: Is x^3 equal to 125 ? [#permalink]

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New post 16 Sep 2012, 18:15

Kudos [?]: 9074 [0], given: 1154

Senior Manager
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Kudos [?]: 193 [0], given: 46

Location: United States (MA)
Re: Is x^3 equal to 125 ? [#permalink]

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New post 17 Sep 2012, 03:31
I think its 500-600 level.

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Re: Is x^3 equal to 125 ? [#permalink]

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New post 08 Aug 2017, 23:58
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).

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Kudos [?]: 273 [0], given: 0

Re: Is x^3 equal to 125 ?   [#permalink] 08 Aug 2017, 23:58
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