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A student’s grade in a course is determined by 4 quizzes and 1 exam.

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Math Expert
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Joined: 02 Sep 2009
Posts: 55670
A student’s grade in a course is determined by 4 quizzes and 1 exam.  [#permalink]

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New post 24 Dec 2018, 21:24
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

67% (01:04) correct 33% (01:12) wrong based on 63 sessions

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Joined: 25 Mar 2016
Posts: 17
Location: India
Schools: IIMB EPGP"20
Re: A student’s grade in a course is determined by 4 quizzes and 1 exam.  [#permalink]

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New post 24 Dec 2018, 21:37
1
Given :
A student’s grade in a course is determined by 4 quizzes and 1 exam. (Final Grade = 4 Quizzes + 1 Exam)
If the exam counts twice as much as each of the quizzes (1 Exam grade unit = 2 Quiz grade units)

Question: what fraction of the final grade is determined by the exam? (Exam Grades / Final Grades =?)

Final Grade = 4 Quiz grade units + 1 Exam grade unit
= 4 Quiz grade units + 2 Quiz grade units
= 6 Quiz grade units

Exam Grades / Final Grades = 2 Quiz grade units / 6 Quiz grade units = 1/3. Answer Option C is correct.
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Re: A student’s grade in a course is determined by 4 quizzes and 1 exam.  [#permalink]

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New post 25 Dec 2018, 03:03
Bunuel wrote:
A student’s grade in a course is determined by 4 quizzes and 1 exam. If the exam counts twice as much as each of thequizzes, what fraction of the final grade is determined by the exam?

A. 1/6
B. 1/5
C. 1/3
D. 1/4
E. 1/2



score would be 1 points of each quiz and 2 points for 1 exam = 4*1+2*1 = 6

so
2/6= 1/3rd of the total score.
IMO C
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Re: A student’s grade in a course is determined by 4 quizzes and 1 exam.   [#permalink] 25 Dec 2018, 03:03
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