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13 Nov 2025, 01:47
Kudos
Bookmarks
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:
95% (00:36) correct
5%
(00:35)
wrong
based on 87
sessions
History
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How many students scored less than the class average on a test?
(1) The class average was 83
(2) Fourteen students scored above the class average
(1) The class average was 83
(2) Fourteen students scored above the class average
13 Nov 2025, 08:09
Kudos
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Bunuel
We need to find the number of students less than class average.
Statement 1:
(1) The class average was 83
The number of students or the number of students less than or more than the average is not given.
Hence, Insufficient.
Statement 2:
(2) Fourteen students scored above the class average.
If there are n students in the class.
The number of students above average = 14
we don’t know the number of students who are equal to average OR number of students who are lesser than the average.
Hence, Insufficient
Combining both the statements 1 and 2, we get
Since, there are no data on the number of students or students who has lesser than or equal to average.
Hence, Insufficient
Otpion E
13 Nov 2025, 08:30
Kudos
Bookmarks
To find students below class avg-
S1: Avg=83
> Clearly insufficient, since there is no data on the number of students and performance of those students.
S2: 14 scored above avg
> Does not help in identifying the avg mark and the total students. Not sufficient.
Combining S1 and S2
> 14 are over the avg, but this does not help in arriving at the total class average or the total number of students. Hence upon combining too it is insufficient.
Hence, E.
S1: Avg=83
> Clearly insufficient, since there is no data on the number of students and performance of those students.
S2: 14 scored above avg
> Does not help in identifying the avg mark and the total students. Not sufficient.
Combining S1 and S2
> 14 are over the avg, but this does not help in arriving at the total class average or the total number of students. Hence upon combining too it is insufficient.
Hence, E.
