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percentage problems

Author Message
Intern
Joined: 16 Feb 2018
Posts: 8

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20 Feb 2018, 20:59
1
In a company 46% workers are male, if 60% workers involve in union and among them 70% workers are male. Find out the percentage of female workers who don't involve in union???

a. 25%
b. 30%
c. 36%
d. 40%

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Intern
Joined: 19 Dec 2017
Posts: 37
Location: United States (OH)
Concentration: General Management, Strategy
GPA: 3.79
WE: Engineering (Manufacturing)

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20 Feb 2018, 22:35

This is a double matrices problem. The categories should be Male, Female, Union, and Not Union.
Assume 100 people total to make the problem easy.
Therefore, there is 46 total male and 54 total female.
You can also conclude that there are 60 total workers in union and 40 not in union.
Since 70% of the 60 workers in the union are male, that means there are 42 male union workers and 18 female union workers.
Now you can conclude that the percentage of female workers not in a union is 54 - 18 = 36
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Intern
Joined: 16 Feb 2018
Posts: 8

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20 Feb 2018, 22:40
thank you so much

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Math Expert
Joined: 02 Sep 2009
Posts: 51215

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22 Feb 2018, 08:31
1971 wrote:
In a company 46% workers are male, if 60% workers involve in union and among them 70% workers are male. Find out the percentage of female workers who don't involve in union???

a. 25%
b. 30%
c. 36%
d. 40%

--== Message from the GMAT Club Team ==--

THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

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Re: percentage problems &nbs [#permalink] 22 Feb 2018, 08:31
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