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# If an employee of Company A is selected at random for a

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Senior Manager
Joined: 25 Nov 2011
Posts: 250
Location: India
Concentration: Technology, General Management
GPA: 3.95
WE: Information Technology (Computer Software)
If an employee of Company A is selected at random for a [#permalink]

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29 Feb 2012, 10:11
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70% (01:25) correct 30% (00:43) wrong based on 121 sessions

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If an employee of Company A is selected at random for a survey, what is the probability that the employee is an executive?

(1) Company A employs 462 people.

(2) The ratio of the number of employees of Company A who are executives to the number of employees of Company A who are not executives is 2:9.
[Reveal] Spoiler: OA

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-Aravind Chembeti

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Re: If an employee of Company A is selected at random for a [#permalink]

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29 Feb 2012, 10:21
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If an employee of Company A is selected at random for a survey, what is the probability that the employee is an executive?

Question: executive/total=?

(1) Company A employs 462 people. Clearly insufficient.

(2) The ratio of the number of employees of Company A who are executives to the number of employees of Company A who are not executives is 2:9 --> executive/(not executive)=2/9 --> executive/total=2/11, since {total} = {executive}+{not executive}. Sufficient.

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Re: If an employee of Company A is selected at random for a [#permalink]

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01 Jul 2012, 23:52
It's B. Since a ratio of this kind gives us the probability. Bunuel works it out best.
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petrifiedbutstanding

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Re: If an employee of Company A is selected at random for a [#permalink]

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21 Jan 2017, 21:03
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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Re: If an employee of Company A is selected at random for a   [#permalink] 21 Jan 2017, 21:03
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