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Nearly all employees of the factory who have completed their high

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Senior Manager
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Joined: 26 Jun 2017
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Location: Russian Federation
Concentration: General Management, Strategy
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Re: Nearly all employees of the factory who have completed their high  [#permalink]

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New post 05 Oct 2018, 18:55
Nearly all employees of the factory who have completed their high school diploma have earned their factory safety certificate, having easily completed the eight week training course. The high school graduates who haven't earned the certificate are ones who have evening obligations that have prevented them from taking the course. Overall, though, most of the factory workers have not earned the certificate.

If the statements above are true, which one of the following also must be true?
---------------------
After prethinking we simply have to look for answer D.
But if we do not make prethinking, we will check the options.

A) A large proportion of students with high school diplomas have evening obligations that have prevented them from taking the eight week training course.
Not true. Look at "Nearly all employees of the factory who have completed their high school diploma have earned their factory safety certificate"

B) No factory worker without a high school diploma has completed the course and earned the certificate.
We do not know it, nothing is said in a passage

C) Most of the workers who have earned the certificate are high school graduates.
We do not know it, nothing is said in a passage

D) A large proportion of the factory workers have not graduated from high school.
Yes.
1. Nearly all employees of the factory who have completed their high school diploma have earned their factory safety certificate ---> almost all high school diploma workers got the certificate (almost 100%)
2. Overall, though, most of the factory workers have not earned the certificate. -----> there are fewer high diploma workers than non high diploma workers


E) Most of the people who take the training course are able to earn the safety certificate.
It is irrelevant
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Re: Nearly all employees of the factory who have completed their high  [#permalink]

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New post 05 Feb 2019, 23:45
Let’s say the factory has 1000 workers. 800 has high school diplomas, and 200 not. 780 of the 800 have evening obligations, so only 20 get safety certificates. 10 of the 200 get safety certificates. Then we have 30 workers who get safety certificates. Of course, 30 is not most. This situation is against choice D.

Am I wrong?
GMAT Club Bot
Re: Nearly all employees of the factory who have completed their high   [#permalink] 05 Feb 2019, 23:45

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