Mathematics Professor at Hartworth College: The performance of the current batch of Hartworth College students in the Mathematics course has been the best till date. Our current batch of students studying Mathematics has broken the record for the last highest average grade received by any batch in the course. This year, the average grade of the students enrolled in the Mathematics course saw a 7 percent increase over the previous highest average grade for the course that was recorded in the year 2009.

Which of the following most weakens the Professor’s statement?

A)The grading system at Hartworth for a particular course differs from the grading system followed by other colleges.

B)The performance of the current batch in Economics, a subject that utilizes Mathematical knowledge for a few concepts, has been the worst in the history of Hartworth.

C)The grading methodology followed for any course evaluation has never been changed since the college was first founded in 1975.

D)Each course in Hartworth follows a grading system in which the grades reflect scores that are computed as a percentage of the course topper’s absolute marks.

E)In the current batch, the number of students who scored above 90 percent in the course is less than the number of students who scored above 90 percent in 2009.

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When nothing seem to help, I would go and look at a Stonecutter hammering away at his rock perhaps a hundred time without as much as a crack showing in it.

Yet at the hundred and first blow it would split in two.

And I knew it was not that blow that did it, But all that had gone Before.