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08 Mar 2019, 02:54
Kudos
Bookmarks
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
85%
(hard)
Question Stats:
30% (01:55) correct
70%
(01:18)
wrong
based on 20
sessions
History
Date
Time
Result
Not Attempted Yet
A certain teacher has a total of at least 110 students enrolled in her classes. If the teachers has an average (arithmetic mean) of exactly 27 students enrolled per class, what is the least possible number of classes that the teacher could have?
A. 3
B. 4
C. 5
D. 6
E. 7
A. 3
B. 4
C. 5
D. 6
E. 7
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Archit3110
Major Poster
08 Mar 2019, 04:16
Kudos
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02 May 2019, 06:38
Kudos
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Bunuel
How is the Answer B , shouldn't it be C
At least 110 students
average of exactly 27 per class
so the number of classes has to be more than 4
if there are 4 classes then 27*4=108 , this does not fill the least number of students criteria. We are running short of students.
There should be at least 5 classes .Then 27*5 =135
IMO C
P.S. Please let me know if I have missed anything.Thanks.
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Problem Solving (PS) Forum
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Thank you for understanding, and happy exploring!
