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At a symposium, 20 % of the professors are psychologists, 60 % are b
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19 Dec 2022, 10:27
19 Dec 2022, 10:27
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Question Stats:
78% (02:05) correct
21% (01:57) wrong based on 28 sessions
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At a symposium, 20 % of the professors are psychologists, 60 % are biologists, and the remaining 12 professors are economists. If 20 of the professors wear glasses, what percent of the professors do not wear glasses?
A. 20%
B. 33 1/3 %
C. 50%
D. 66 2/3 %
E. 80%
A. 20%
B. 33 1/3 %
C. 50%
D. 66 2/3 %
E. 80%
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Joined: 20 Feb 2017
Posts: 2506
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Re: At a symposium, 20 % of the professors are psychologists, 60 % are b
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20 Dec 2022, 22:33
20 Dec 2022, 22:33
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Carcass wrote:
At a symposium, 20 % of the professors are psychologists, 60 % are biologists, and the remaining 12 professors are economists. If 20 of the professors wear glasses, what percent of the professors do not wear glasses?
A. 20%
B. 33 1/3 %
C. 50%
D. 66 2/3 %
E. 80%
A. 20%
B. 33 1/3 %
C. 50%
D. 66 2/3 %
E. 80%
20% of the professors are psychologists
60% are biologists
remaining 20% are 12 economists.
Hence total = 60 (as 20% =12)
If 20 of the professors wear glasses it means 40 do not wear glasses. And 40 is equal to 2/3 of 60.
Answer: D
Re: At a symposium, 20 % of the professors are psychologists, 60 % are b
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03 Jul 2025, 15:19
03 Jul 2025, 15:19
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Thanks to another GRE Prep 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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