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GMAT695
Joined: 12 Jul 2023
Last visit: 19 Dec 2025
Posts: 544
Given Kudos: 243
Location: India
Concentration: Entrepreneurship, Finance
Schools: Stern '27 Fuqua '27 Columbia '27
GMAT Focus 1: 535 Q77 V78 DI74 
GMAT Focus 2: 575 Q83 V74 DI78
GMAT Focus 3: 635 Q87 V81 DI76
GMAT 1: 420 Q31 V17
GPA: 7.37
WE:Business Development (Finance)
09 Oct 2024, 00:10
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
71% (02:12) correct
29%
(02:14)
wrong
based on 630
sessions
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The course grade for a mathematics course consists of 60 percent of the final-exam grade plus 20 percent of each of two preliminary exam grades, where each exam grade is a number from 0 through 100. If a student's course grade must be at least 60 in order for the student to pass the course, did Greg pass the course?
(1) Greg's final-exam grade was greater than 50.
(2) The average (arithmetic mean) of Greg's two preliminary exam grades was greater than 68.
GMAT-Club-Forum-g56qg5fu.png [ 159.96 KiB | Viewed 3043 times ]
(1) Greg's final-exam grade was greater than 50.
(2) The average (arithmetic mean) of Greg's two preliminary exam grades was greater than 68.
Attachment:
GMAT-Club-Forum-g56qg5fu.png [ 159.96 KiB | Viewed 3043 times ]
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09 Oct 2024, 01:48
Kudos
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The course grade for a mathematics course consists of 60 percent of the final-exam grade plus 20 percent of each of two preliminary exam grades, where each exam grade is a number from 0 through 100. If a student's course grade must be at least 60 in order for the student to pass the course, did Greg pass the course?
(1) Greg's final-exam grade was greater than 50.
This means the final-exam contributed more than 0.6 * 50 = 30 points out of the required 60. Not sufficient.
(2) The average (arithmetic mean) of Greg's two preliminary exam grades was greater than 68.
This implies the sum of the two grades was greater than 2 * 68 = 136, contributing more than 0.2 * 136 = 27.2 points out of the required 60. Not sufficient.
(1) + (2) Together, Greg's course grade would be more than 30 + 27.2 = 57.2. Therefore, the grade could have been less than or greater than 60. Not sufficient.
Answer: E.
(1) Greg's final-exam grade was greater than 50.
This means the final-exam contributed more than 0.6 * 50 = 30 points out of the required 60. Not sufficient.
(2) The average (arithmetic mean) of Greg's two preliminary exam grades was greater than 68.
This implies the sum of the two grades was greater than 2 * 68 = 136, contributing more than 0.2 * 136 = 27.2 points out of the required 60. Not sufficient.
(1) + (2) Together, Greg's course grade would be more than 30 + 27.2 = 57.2. Therefore, the grade could have been less than or greater than 60. Not sufficient.
Answer: E.
General Discussion
24 Nov 2024, 04:56
Kudos
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"plus 20 percent of each of two preliminary exam grades" -- why does this not mean 40%?
I.e. 20% of one preliminary exam grade, 20% of the other preliminary exam grade.
It would also make more sense since 60% + 20% + 20% would be 100%?
I.e. 20% of one preliminary exam grade, 20% of the other preliminary exam grade.
It would also make more sense since 60% + 20% + 20% would be 100%?
Bunuel
