Student: The majority of the 50 students in our class answered at least 80% of the questions correctly on last yearandrsquo;s Algebra I final exam. If these final exam scores do accurately measure a studentandrsquo;s level of understanding, Marc must have learned less about algebra last year than most other students in our class, because he answered only 75% of the questions correctly on last yearandrsquo;s Algebra I final exam.Which of the following, if true, most seriously weakens the studentandrsquo;s argument?a)Seven students answered less than 75% of the questions correctly on the final exam in Algebra I last year.b)Marc is one of four students in the class who did not take an introductory-level algebra course offered by the school two years ago.c)Marc is one of three students who answered exactly 75% of the questions correctly on the final exam in Algebra I last year.d)The teacher estimated that last yearandrsquo;s ninth-grade Algebra I final exam was roughly twice as difficult as this yearandrsquo;s Algebra I final exam.e)Only three students spent less time than Marc spent answering the questions on last yearandrsquo;s Algebra I final exam.Correct answer is option 'B'. Can you explain this answer?

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Student: The majority of the 50 students in our class answered at least 80% of the questions correctly on last year’s Algebra I final exam. If these final exam scores do accurately measure a student’s level of understanding, Marc must have learned less about algebra last year than most other students in our class, because he answered only 75% of the questions correctly on last year’s Algebra I final exam.

Which of the following, if true, most seriously weakens the student’s argument?

a)
Seven students answered less than 75% of the questions correctly on the final exam in Algebra I last year.
b)
Marc is one of four students in the class who did not take an introductory-level algebra course offered by the school two years ago.
c)
Marc is one of three students who answered exactly 75% of the questions correctly on the final exam in Algebra I last year.
d)
The teacher estimated that last year’s ninth-grade Algebra I final exam was roughly twice as difficult as this year’s Algebra I final exam.
e)
Only three students spent less time than Marc spent answering the questions on last year’s Algebra I final exam.

Correct answer is option 'B'. Can you explain this answer?

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Student: The majority of the 50 students in our class answered at leas...

The student's argument is that Marc must have learned less about algebra last year than most other students in the class because he answered only 75% of the questions correctly on the Algebra I final exam. The student assumes that the final exam scores accurately measure a student's level of understanding.

We need to find an answer choice that weakens this argument. Let's evaluate each option:

(A) Seven students answered less than 75% of the questions correctly on the final exam in Algebra I last year.

This option does not weaken the argument because it only tells us that there were other students who scored lower than Marc. It does not provide any information about Marc's understanding of algebra relative to the rest of the class.

(B) Marc is one of four students in the class who did not take an introductory-level algebra course offered by the school two years ago.

This option weakens the argument because it provides an alternative explanation for Marc's lower score. If Marc did not take the introductory-level algebra course, it suggests that he may have been at a disadvantage compared to the other students who took the course. Therefore, his lower score on the final exam may not necessarily reflect his level of understanding but could be due to a lack of prior preparation.

(C) Marc is one of three students who answered exactly 75% of the questions correctly on the final exam in Algebra I last year.

This option does not weaken the argument because it simply identifies Marc as one of three students who answered exactly 75% of the questions correctly. It does not provide any information that challenges the assumption that Marc learned less about algebra than most other students.

(D) The teacher estimated that last year's ninth-grade Algebra I final exam was roughly twice as difficult as this year's Algebra I final exam.

This option does not weaken the argument either. While it provides information about the relative difficulty of the exams, it does not directly address Marc's level of understanding or his performance compared to other students.

(E) Only three students spent less time than Marc spent answering the questions on last year's Algebra I final exam.

This option does not weaken the argument because it only tells us that a small number of students spent less time than Marc on the exam. It does not provide any information about Marc's level of understanding relative to the rest of the class.

After evaluating all the options, we can conclude that option (B) weakens the student's argument by providing an alternative explanation for Marc's lower score. It suggests that Marc's lack of prior exposure to an introductory-level algebra course may have impacted his performance on the final exam, rather than his understanding of algebra being inferior to most other students.

Therefore, the correct answer is (B).

Answered by Talent Skill Learning · View profile

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Student: The majority of the 50 students in our class answered at least 80% of the questions correctly on last year’s Algebra I final exam. If these final exam scores do accurately measure a student’s level of understanding, Marc must have learned less about algebra last year than most other students in our class, because he answered only 75% of the questions correctly on last year’s Algebra I final exam.Which of the following, if true, most seriously weakens the student’s argument?a)Seven students answered less than 75% of the questions correctly on the final exam in Algebra I last year.b)Marc is one of four students in the class who did not take an introductory-level algebra course offered by the school two years ago.c)Marc is one of three students who answered exactly 75% of the questions correctly on the final exam in Algebra I last year.d)The teacher estimated that last year’s ninth-grade Algebra I final exam was roughly twice as difficult as this year’s Algebra I final exam.e)Only three students spent less time than Marc spent answering the questions on last year’s Algebra I final exam.Correct answer is option 'B'. Can you explain this answer?

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Student: The majority of the 50 students in our class answered at least 80% of the questions correctly on last year’s Algebra I final exam. If these final exam scores do accurately measure a student’s level of understanding, Marc must have learned less about algebra last year than most other students in our class, because he answered only 75% of the questions correctly on last year’s Algebra I final exam.Which of the following, if true, most seriously weakens the student’s argument?a)Seven students answered less than 75% of the questions correctly on the final exam in Algebra I last year.b)Marc is one of four students in the class who did not take an introductory-level algebra course offered by the school two years ago.c)Marc is one of three students who answered exactly 75% of the questions correctly on the final exam in Algebra I last year.d)The teacher estimated that last year’s ninth-grade Algebra I final exam was roughly twice as difficult as this year’s Algebra I final exam.e)Only three students spent less time than Marc spent answering the questions on last year’s Algebra I final exam.Correct answer is option 'B'. Can you explain this answer? for GMAT 2024 is part of GMAT preparation. The Question and answers have been prepared according to the GMAT exam syllabus. Information about Student: The majority of the 50 students in our class answered at least 80% of the questions correctly on last year’s Algebra I final exam. If these final exam scores do accurately measure a student’s level of understanding, Marc must have learned less about algebra last year than most other students in our class, because he answered only 75% of the questions correctly on last year’s Algebra I final exam.Which of the following, if true, most seriously weakens the student’s argument?a)Seven students answered less than 75% of the questions correctly on the final exam in Algebra I last year.b)Marc is one of four students in the class who did not take an introductory-level algebra course offered by the school two years ago.c)Marc is one of three students who answered exactly 75% of the questions correctly on the final exam in Algebra I last year.d)The teacher estimated that last year’s ninth-grade Algebra I final exam was roughly twice as difficult as this year’s Algebra I final exam.e)Only three students spent less time than Marc spent answering the questions on last year’s Algebra I final exam.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for GMAT 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Student: The majority of the 50 students in our class answered at least 80% of the questions correctly on last year’s Algebra I final exam. If these final exam scores do accurately measure a student’s level of understanding, Marc must have learned less about algebra last year than most other students in our class, because he answered only 75% of the questions correctly on last year’s Algebra I final exam.Which of the following, if true, most seriously weakens the student’s argument?a)Seven students answered less than 75% of the questions correctly on the final exam in Algebra I last year.b)Marc is one of four students in the class who did not take an introductory-level algebra course offered by the school two years ago.c)Marc is one of three students who answered exactly 75% of the questions correctly on the final exam in Algebra I last year.d)The teacher estimated that last year’s ninth-grade Algebra I final exam was roughly twice as difficult as this year’s Algebra I final exam.e)Only three students spent less time than Marc spent answering the questions on last year’s Algebra I final exam.Correct answer is option 'B'. Can you explain this answer?.

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