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All 50 employees in Company X take one of the two courses, NLP and HLP

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Math Expert
Joined: 02 Sep 2009
Posts: 53831
All 50 employees in Company X take one of the two courses, NLP and HLP  [#permalink]

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17 Oct 2018, 00:14
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Difficulty:

45% (medium)

Question Stats:

65% (01:31) correct 35% (01:41) wrong based on 35 sessions

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All 50 employees in Company X take one of the two courses, NLP and HLP. What is the average (arithmetic mean) age of the employees in the company?

(1) In the company, the average age of the employees in the NLP course is 40.

(2) In the company, the average age of the employees in the HLP course is 3/4 of the average age of the employees in the NLP course.

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Joined: 24 Dec 2017
Posts: 185
Location: India
Concentration: Strategy, Real Estate
Schools: Johnson '21
All 50 employees in Company X take one of the two courses, NLP and HLP  [#permalink]

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18 Oct 2018, 09:23
1
Statement 1: Avg NLP = 40. No information about Avg HLP - Insufficient AD

Statement 2: Avg HLP = 3/4th of NLP. No information about NLP - Insufficient BDE

Statement 1 + Statement 2:
Avg HLP = 3/4 of NLP
=3/4 X 40 = 30
Avg HLP = 30 & Avg NLP = 40
But in order to find the average average age of all the employees, we must first find the total age all the employees however we are unable to find it with the given information.

Hence E
All 50 employees in Company X take one of the two courses, NLP and HLP   [#permalink] 18 Oct 2018, 09:23
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