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In a graduating class of 236 students, 142 took algebra and 121 took
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23 Jul 2021, 10:15
23 Jul 2021, 10:15
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In a graduating class of 236 students, 142 took algebra and 121 took chemistry. What is the greatest number of students that could have taken both algebra and chemistry?
(A) 21
(B) 27
(C) 37
(D) 121
(E) 142
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
(A) 21
(B) 27
(C) 37
(D) 121
(E) 142
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
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Re: In a graduating class of 236 students, 142 took algebra and 121 took
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23 Jul 2021, 10:56
23 Jul 2021, 10:56
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Carcass wrote:
In a graduating class of 236 students, 142 took algebra and 121 took chemistry. What is the greatest number of students that could have taken both algebra and chemistry?
(A) 21
(B) 27
(C) 37
(D) 121
(E) 142
(A) 21
(B) 27
(C) 37
(D) 121
(E) 142
In order to maximize the intersection of two sets, we can put the smaller set into the bigger one (as shown in the figure)
Here, all Chemistry students can take both Algebra and Chemistry.
Hence, option D
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Re: In a graduating class of 236 students, 142 took algebra and 121 took [#permalink]
23 Jul 2021, 10:56
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