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GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2506
Given Kudos: 1055
GPA: 3.39
In a college class, each student’s overall grade is calculated by aver
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02 Aug 2021, 01:35
02 Aug 2021, 01:35
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In a college class, each student’s overall grade is calculated by averaging the student’s grades on t different exams. Up until the last exam, Wei had earned an average exam grade of 0.75g. After earning a grade of g on the last exam, Wei’s overall grade in the class was 0.8g. What is the value of t ?
(A) 2
(B) 3
(C) 4
(D) 5
(E) 6
(A) 2
(B) 3
(C) 4
(D) 5
(E) 6
Retired Moderator
Joined: 19 Nov 2020
Posts: 326
Given Kudos: 64
GRE 1: Q160 V152
Re: In a college class, each student’s overall grade is calculated by aver
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02 Aug 2021, 17:46
02 Aug 2021, 17:46
0.75g(t-1)+g=0.8gt
0.75t-0.75+1=0.8t
0.05t=0.25, t=5 answer is D
0.75t-0.75+1=0.8t
0.05t=0.25, t=5 answer is D
GeminiHeat wrote:
In a college class, each student’s overall grade is calculated by averaging the student’s grades on t different exams. Up until the last exam, Wei had earned an average exam grade of 0.75g. After earning a grade of g on the last exam, Wei’s overall grade in the class was 0.8g. What is the value of t ?
(A) 2
(B) 3
(C) 4
(D) 5
(E) 6
(A) 2
(B) 3
(C) 4
(D) 5
(E) 6
gmatclubot
Re: In a college class, each student’s overall grade is calculated by aver [#permalink]
02 Aug 2021, 17:46
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