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05 Dec 2018, 06:53
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
97% (00:31) correct
3%
(00:31)
wrong
based on 330
sessions
History
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How many students are enrolled in the Groveville Public Schools?
(1) There are 30 students per classroom in the Groveville Public Schools.
(2) The student-teacher ratio is 20 to 1 in the Groveville Public Schools
(1) There are 30 students per classroom in the Groveville Public Schools.
(2) The student-teacher ratio is 20 to 1 in the Groveville Public Schools
05 Dec 2018, 07:28
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The answer is E.
1) we need to multiply this by the number of classrooms - insufficient
2) we need to multiply this by the number of teachers - insufficient
combined: we still need either the number of teachers or classrooms to get to the number of students from any of these pieces of data. insufficient.
1) we need to multiply this by the number of classrooms - insufficient
2) we need to multiply this by the number of teachers - insufficient
combined: we still need either the number of teachers or classrooms to get to the number of students from any of these pieces of data. insufficient.
05 Dec 2018, 08:15
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gmatbusters
How many students are enrolled in the Groveville Public Schools?
(1) There are 30 students per classroom in the Groveville Public Schools.
(2) The in the Groveville Public Schools
Target question: How many students are enrolled in the Groveville Public Schools?(1) There are 30 students per classroom in the Groveville Public Schools.
(2) The in the Groveville Public Schools
Statement 1: There are 30 students per classroom in the Groveville Public Schools.
How many classrooms are there?
Statement 1 is NOT SUFFICIENT
Statement 2: The student-teacher ratio is 20 to 1 in the Groveville Public Schools
How many teachers are there?
Statement 2 is NOT SUFFICIENT
Statements 1 and 2 combined
There are infinitely many scenarios that satisfy BOTH statements. Here are two:
Case a: Groveville has 2 classrooms and 3 teachers. This means there are 60 students and a student-teacher ratio of 20 to 1. In this case, the answer to the target question is there are 60 students enrolled in the Groveville Public Schools
Case b: Groveville has 4 classrooms and 6 teachers. This means there are 120 students and a student-teacher ratio of 20 to 1. In this case, the answer to the target question is there are 120 students enrolled in the Groveville Public Schools
Since we cannot answer the target question with certainty, the combined statements are NOT SUFFICIENT
Answer: E
Cheers,
Brent
