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# If a number between 0 and 1 is selected at random, which of

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Intern
Joined: 14 Nov 2011
Posts: 6

Kudos [?]: 8 [0], given: 0

If a number between 0 and 1 is selected at random, which of [#permalink]

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17 Apr 2012, 08:22
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25% (medium)

Question Stats:

71% (00:55) correct 29% (00:44) wrong based on 164 sessions

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If a number between 0 and 1 is selected at random, which of the following will the number most likely be between?

A. 0 and 3/20
B. 3/20 and 1/5
C. 1/5 and 1/4
D. 1/4 and 3/10
E. 3/10 and 1/2
[Reveal] Spoiler: OA

Kudos [?]: 8 [0], given: 0

Math Expert
Joined: 02 Sep 2009
Posts: 41892

Kudos [?]: 129002 [4], given: 12187

Re: If a number between 0 and 1 is selected at random, which of [#permalink]

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17 Apr 2012, 08:31
4
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Expert's post
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If a number between 0 and 1 is selected at random, which of the following will the number most likely be between?

A. 0 and 3/20
B. 3/20 and 1/5
C. 1/5 and 1/4
D. 1/4 and 3/10
E. 3/10 and 1/2

The number will most likely be between the largest range.

A. 0 and 3/20 --> range 3/20;
B. 3/20 and 4/20 --> range 1/20;
C. 4/20 and 5/20 --> range 1/20;
D. 5/20 and 6/20 --> range 1/20;
E. 6/20 and 10/20 --> range 4/20.

_________________

Kudos [?]: 129002 [4], given: 12187

Manager
Joined: 03 Aug 2010
Posts: 105

Kudos [?]: 96 [0], given: 63

GMAT Date: 08-08-2011
Re: If a number between 0 and 1 is selected at random, which of [#permalink]

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17 Apr 2012, 08:34
I converted the fractions to decimals and checked the range.

A) 0 and 0.15 > 0.15
B) .15 and 0.2 > 0.05
C) 0.2 and 0.25 > 0.05
D) 0.25 and 0.3 > 0.05
E) 0.3 and 0.5 > 0.2

E covers the largest range. Hence the ans is E.

If a number between 0 and 1 is selected at random, which of the following will the number most likely be between?

A. 0 and 3/20
B. 3/20 and 1/5
C. 1/5 and 1/4
D. 1/4 and 3/10
E. 3/10 and 1/2

Kudos [?]: 96 [0], given: 63

Manager
Joined: 16 Jan 2011
Posts: 111

Kudos [?]: 177 [0], given: 15

Re: If a number between 0 and 1 is selected at random, which of [#permalink]

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26 Apr 2012, 12:29
the answer should be E, since the larger range the larger probability of choosing a number from that range

Kudos [?]: 177 [0], given: 15

GMAT Club Legend
Joined: 09 Sep 2013
Posts: 16635

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

Re: If a number between 0 and 1 is selected at random, which of [#permalink]

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16 Jul 2017, 04:01
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: If a number between 0 and 1 is selected at random, which of   [#permalink] 16 Jul 2017, 04:01
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