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# A class has 4 sections P, Q, R and S and the average weights

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Manager
Joined: 08 Apr 2017
Posts: 77
A class has 4 sections P, Q, R and S and the average weights  [#permalink]

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17 Mar 2018, 08:15
00:00

Difficulty:

65% (hard)

Question Stats:

33% (03:34) correct 67% (02:01) wrong based on 6 sessions

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A class has 4 sections P, Q, R and S and the average weights of the students in the sections are 45lbs, 50lbs, 55lbs, and 65lbs respectively. What is the maximum possible number of students in section R if there are 40 students in all sections combined and the average weight of all students across all the sections is 55lbs? It is known that each section has at least one student.

(A) 18

(B) 20

(C) 25

(D) 35

(E) 37

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Math Expert
Joined: 02 Sep 2009
Posts: 55277
Re: A class has 4 sections P, Q, R and S and the average weights  [#permalink]

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17 Mar 2018, 08:17
sachinpoovanna wrote:
A class has 4 sections P, Q, R and S and the average weights of the students in the sections are 45lbs, 50lbs, 55lbs, and 65lbs respectively. What is the maximum possible number of students in section R if there are 40 students in all sections combined and the average weight of all students across all the sections is 55lbs? It is known that each section has at least one student.

(A) 18

(B) 20

(C) 25

(D) 35

(E) 37

--== 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.

_________________
Re: A class has 4 sections P, Q, R and S and the average weights   [#permalink] 17 Mar 2018, 08:17
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