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In a professionals’ club, are more than (1/3)rd of the members mechani 17 Oct 2018, 00:35
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95% (hard)

Question Stats:

37% (01:52) correct 63% (01:54) wrong based on 141 sessions

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In a professionals’ club, are more than (1/3)rd of the members mechanical engineers? Only those who are engineers can be mechanical engineers.


(1) Exactly 75 percent of the female members are engineers, and, of them, (1/3)rd are mechanical engineers.

(2) Exactly 30 percent of the male members are engineers.
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C
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In a professionals’ club, are more than (1/3)rd of the members mechani 18 Oct 2018, 04:40
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Bunuel
In a professionals’ club, are more than (1/3)rd of the members mechanical engineers? Only those who are engineers can be mechanical engineers.


(1) Exactly 75 percent of the female members are engineers, and, of them, (1/3)rd are mechanical engineers.

(2) Exactly 30 percent of the male members are engineers.
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Please see the explanation in attachment.

Answer: Option C


Also, Please find a video solution


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File comment: www.GMATinsight.com
Screenshot 2018-10-18 at 5.07.44 PM.png
Screenshot 2018-10-18 at 5.07.44 PM.png [ 558.94 KiB | Viewed 3694 times ]

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In a professionals’ club, are more than (1/3)rd of the members mechani 19 Oct 2018, 23:20
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GMATinsight Did not quite understand how the % of total Mechanical Engineers would fall between 0.25 <x< 0.30.

Could you please explain? I believe this is a fundamental concept, so would appreciate if you could please provide the concept as well.

Thanks
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In a professionals’ club, are more than (1/3)rd of the members mechani 20 Oct 2018, 07:33
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Payal259
GMATinsight Did not quite understand how the % of total Mechanical Engineers would fall between 0.25 <x< 0.30.

Could you please explain? I believe this is a fundamental concept, so would appreciate if you could please provide the concept as well.

Thanks
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Hi Payal259 ,

It's a simple rule of mixtures that if a 10% and 20% alcohol solutions are mixed than resultant will have alcohol percentage between 10% and 20% depending upon the quantities

Similarly 25% of Men and 30% of women can form only a 25 to 30% of entire population (Men + women)

I hope this helps!!! If still not clear, then I can substantiate further... let me know... :)
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In a professionals’ club, are more than (1/3)rd of the members mechani 20 Oct 2018, 09:24
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Another great video explanation. Thanks GMATinsight
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In a professionals’ club, are more than (1/3)rd of the members mechani 20 Oct 2018, 21:48
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ShankSouljaBoi
Another great video explanation. Thanks GMATinsight
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Thank you so much ShankSouljaBoi for appreciating the video explanation. It encourages me to make more such videos and post for benefit of all forum members.
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In a professionals’ club, are more than (1/3)rd of the members mechani 16 Nov 2022, 08:01
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