GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 17 Oct 2018, 14:01

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

A student's grade in a college course is determined by the scores of 5

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Intern
Intern
avatar
B
Joined: 08 Feb 2015
Posts: 3
A student's grade in a college course is determined by the scores of 5  [#permalink]

Show Tags

New post 20 Jan 2017, 09:00
1
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

70% (02:58) correct 30% (03:09) wrong based on 42 sessions

HideShow timer Statistics

A student's grade in a college course is determined by the scores of 5 quizzes, a midterm exam and a final exam. The midterm exam and the final exam both count twice as much as a quiz in determining the student's average grade. If the student averages a score of 80 on the quizzes and scored a 90 on the midterm exam, then what would the student have to score on the final exam to have an overall average grade of 85 for the entire course?

A - 85.5
B - 90
C - 92.5
D - 93.5
E - 95
Intern
Intern
avatar
B
Joined: 03 Sep 2016
Posts: 15
Re: A student's grade in a college course is determined by the scores of 5  [#permalink]

Show Tags

New post 20 Jan 2017, 10:27
1
5/9*80+2/9*90+2/9*x = 85 (mid term n final both count twice as much as a quiz)
Ans: 92.5

Sent from my Redmi Note 3 using GMAT Club Forum mobile app
Intern
Intern
avatar
B
Joined: 13 Mar 2016
Posts: 18
Location: India
Concentration: General Management, Entrepreneurship
WE: General Management (Energy and Utilities)
Re: A student's grade in a college course is determined by the scores of 5  [#permalink]

Show Tags

New post 20 Jan 2017, 11:30
5/9*80+2/9*90+2/9*x = 85
Director
Director
User avatar
P
Joined: 27 May 2012
Posts: 583
Premium Member
Re: A student's grade in a college course is determined by the scores of 5  [#permalink]

Show Tags

New post 24 Sep 2018, 03:33
Jeoren wrote:
A student's grade in a college course is determined by the scores of 5 quizzes, a midterm exam and a final exam. The midterm exam and the final exam both count twice as much as a quiz in determining the student's average grade. If the student averages a score of 80 on the quizzes and scored a 90 on the midterm exam, then what would the student have to score on the final exam to have an overall average grade of 85 for the entire course?

A - 85.5
B - 90
C - 92.5
D - 93.5
E - 95


Sorry this concept is not clear to me , can anybody explain. Thanks.
_________________

- Stne

Intern
Intern
User avatar
B
Joined: 26 Feb 2017
Posts: 14
Re: A student's grade in a college course is determined by the scores of 5  [#permalink]

Show Tags

New post 24 Sep 2018, 03:59
1
Jeoren wrote:
A student's grade in a college course is determined by the scores of 5 quizzes, a midterm exam and a final exam. The midterm exam and the final exam both count twice as much as a quiz in determining the student's average grade. If the student averages a score of 80 on the quizzes and scored a 90 on the midterm exam, then what would the student have to score on the final exam to have an overall average grade of 85 for the entire course?

A - 85.5
B - 90
C - 92.5
D - 93.5
E - 95


(80*5) + (90*2) + (x*2) = 85*9
580+(x*2) = 765
X=185/2
X=92.5

Answer is C

Is there any other way to solve this question which is faster?


Sent from my iPhone using GMAT Club Forum mobile app
Director
Director
User avatar
P
Joined: 27 May 2012
Posts: 583
Premium Member
Re: A student's grade in a college course is determined by the scores of 5  [#permalink]

Show Tags

New post 24 Sep 2018, 04:08
dollytaneja51 wrote:
Jeoren wrote:
A student's grade in a college course is determined by the scores of 5 quizzes, a midterm exam and a final exam. The midterm exam and the final exam both count twice as much as a quiz in determining the student's average grade. If the student averages a score of 80 on the quizzes and scored a 90 on the midterm exam, then what would the student have to score on the final exam to have an overall average grade of 85 for the entire course?

A - 85.5
B - 90
C - 92.5
D - 93.5
E - 95


(80*5) + (90*2) + (x*2) = 85*9
580+(x*2) = 765
X=185/2
X=92.5

Answer is C

Is there any other way to solve this question which is faster?


Sent from my iPhone using GMAT Club Forum mobile app


Thank you, got the concept.
_________________

- Stne

GMAT Club Bot
Re: A student's grade in a college course is determined by the scores of 5 &nbs [#permalink] 24 Sep 2018, 04:08
Display posts from previous: Sort by

A student's grade in a college course is determined by the scores of 5

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.