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

 It is currently 20 Jan 2019, 17:31

### 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

## Events & Promotions

###### Events & Promotions in January
PrevNext
SuMoTuWeThFrSa
303112345
6789101112
13141516171819
20212223242526
272829303112
Open Detailed Calendar
• ### FREE Quant Workshop by e-GMAT!

January 20, 2019

January 20, 2019

07:00 AM PST

07:00 AM PST

Get personalized insights on how to achieve your Target Quant Score.
• ### GMAT Club Tests are Free & Open for Martin Luther King Jr.'s Birthday!

January 21, 2019

January 21, 2019

10:00 PM PST

11:00 PM PST

Mark your calendars - All GMAT Club Tests are free and open January 21st for celebrate Martin Luther King Jr.'s Birthday.

# In a particular course, only two grades are given all semester: the

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

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 52296
In a particular course, only two grades are given all semester: the  [#permalink]

### Show Tags

18 Aug 2015, 00:45
1
2
00:00

Difficulty:

15% (low)

Question Stats:

81% (01:49) correct 19% (02:25) wrong based on 180 sessions

### HideShow timer Statistics

In a particular course, only two grades are given all semester: the midterm exam, which counts for 25% of the semester grade, and the final exam, which counts for the remainder. Lindsey's semester grade was 88%. If the highest possible score on either exam is 100%, what is the lowest possible score that Lindsey could have received on her midterm exam?

A. 52%
B. 64%
C. 72%
D. 76%
E. 80%

Kudos for a correct solution.

_________________
CEO
Joined: 20 Mar 2014
Posts: 2636
Concentration: Finance, Strategy
Schools: Kellogg '18 (M)
GMAT 1: 750 Q49 V44
GPA: 3.7
WE: Engineering (Aerospace and Defense)
Re: In a particular course, only two grades are given all semester: the  [#permalink]

### Show Tags

18 Aug 2015, 03:49
2
Bunuel wrote:
In a particular course, only two grades are given all semester: the midterm exam, which counts for 25% of the semester grade, and the final exam, which counts for the remainder. Lindsey's semester grade was 88%. If the highest possible score on either exam is 100%, what is the lowest possible score that Lindsey could have received on her midterm exam?

A. 52%
B. 64%
C. 72%
D. 76%
E. 80%

Kudos for a correct solution.

Let m be the score in the mid term and f be the score in finals.

Per the question,

$$\frac{0.25m+0.75f}{1}$$ $$= 0.88$$

For minimising m, we need to maximise f and thus put f = 1, we get

$$m = \frac{0.13}{0.25} = 0.52$$.

A is the correct answer.
Manager
Joined: 14 Mar 2014
Posts: 146
GMAT 1: 710 Q50 V34
Re: In a particular course, only two grades are given all semester: the  [#permalink]

### Show Tags

18 Aug 2015, 20:38
2
Bunuel wrote:
In a particular course, only two grades are given all semester: the midterm exam, which counts for 25% of the semester grade, and the final exam, which counts for the remainder. Lindsey's semester grade was 88%. If the highest possible score on either exam is 100%, what is the lowest possible score that Lindsey could have received on her midterm exam?

A. 52%
B. 64%
C. 72%
D. 76%
E. 80%

Kudos for a correct solution.

IMO : A

Let us consider out of 100 marks Lindsey's semester grade marks was 88.

Given Final exam marks account for 75% of semester grade and mid term marks account for 25% of semester grade.

88 marks = (0.25)mid term marks + (0.75)final exam marks

We need minimum mid term marks. Hence Final exam he must score the maximum marks i.e. 100
88 marks = (0.25)mid term marks + (0.75)*100
13 = (0.25) * mid term marks

Thus Mid term marks = 52 out of 100 i.e. 52%
_________________

I'm happy, if I make math for you slightly clearer
And yes, I like kudos
¯\_(ツ)_/¯

SVP
Joined: 26 Mar 2013
Posts: 2002
Re: In a particular course, only two grades are given all semester: the  [#permalink]

### Show Tags

19 Aug 2015, 02:26
1
Assume the total = 100 ......> Lindsay' mark=88

To obtain the min possible in the midterm exam, it must had full mark in final exam 75........> 88-75=13

13/25= ??? above 50 as 12.5 is 50%. Answer is 52%

Answer: A
Math Expert
Joined: 02 Sep 2009
Posts: 52296
Re: In a particular course, only two grades are given all semester: the  [#permalink]

### Show Tags

23 Aug 2015, 10:56
Bunuel wrote:
In a particular course, only two grades are given all semester: the midterm exam, which counts for 25% of the semester grade, and the final exam, which counts for the remainder. Lindsey's semester grade was 88%. If the highest possible score on either exam is 100%, what is the lowest possible score that Lindsey could have received on her midterm exam?

A. 52%
B. 64%
C. 72%
D. 76%
E. 80%

Kudos for a correct solution.

VERITAS PREP OFFICIAL SOLUTION:

If the midterm counts for 25% of the total grade, then the final exam must count for the remaining 75%, meaning that in this weighted average problem the final is weighted 3 times as much as the midterm. Using the weighted average mapping strategy, then, and maximizing her final exam score so that you minimize her midterm score, you have:

100-------------88----------------------------x

And you know that the ratio is 3:1. Since the final exam score of 100 is weighted heavier, then the difference of 12 between 100 and 88 is the "1" part of the ratio, meaning that 3(12) is the 3 portion. That equals 36, so the midterm score (x) is 36 less than the weighted average of 88. 88 - 36 = 52, so the correct answer is 52%.
_________________
Manager
Joined: 08 Oct 2016
Posts: 204
Location: United States
Concentration: General Management, Finance
GPA: 2.9
WE: Engineering (Telecommunications)
Re: In a particular course, only two grades are given all semester: the  [#permalink]

### Show Tags

21 Apr 2017, 10:31
Bunuel wrote:
In a particular course, only two grades are given all semester: the midterm exam, which counts for 25% of the semester grade, and the final exam, which counts for the remainder. Lindsey's semester grade was 88%. If the highest possible score on either exam is 100%, what is the lowest possible score that Lindsey could have received on her midterm exam?

A. 52%
B. 64%
C. 72%
D. 76%
E. 80%

Kudos for a correct solution.

How I did it I took smart numbers
Since
mid term count 25% so 25 marks from mid term
final exam count 75% mean 75
if we have to answer what is min score she score to have 88% on final
suppose she score 75 now 75 is 13 short of 88 so
75+13=88
so Lindsey scored 13/25 on mid term which is approx 52%
Choice A
_________________

Got Q42,V17
Target#01 Q45,V20--April End

Chat Moderator
Joined: 07 Mar 2016
Posts: 46
In a particular course, only two grades are given all semester: the  [#permalink]

### Show Tags

21 Apr 2017, 10:58
The mid-term grade is 1/4 of the final grade, and the prompt asks for the lowest value that she can score on the test and maintain an 88%.

88=x+100+100+100/4

352=x+300

52=x

Answer choice "A"
_________________

...once and a while you get shown the light, in the strangest of places if you look at it right...

Target Test Prep Representative
Status: Head GMAT Instructor
Affiliations: Target Test Prep
Joined: 04 Mar 2011
Posts: 2830
Re: In a particular course, only two grades are given all semester: the  [#permalink]

### Show Tags

26 Jan 2018, 09:47
Bunuel wrote:
In a particular course, only two grades are given all semester: the midterm exam, which counts for 25% of the semester grade, and the final exam, which counts for the remainder. Lindsey's semester grade was 88%. If the highest possible score on either exam is 100%, what is the lowest possible score that Lindsey could have received on her midterm exam?

A. 52%
B. 64%
C. 72%
D. 76%
E. 80%

To find Lindsey’s lowest possible score on the midterm, we can assume that Lindsey received a 100 on her final exam. Let’s let x = her midterm score; thus, we have

0.25x + 0.75(100) = 88

0.25x + 75 = 88

0.25x = 13

x = 13/0.25 = 52

Answer: A
_________________

Jeffery Miller
Head of GMAT Instruction

GMAT Quant Self-Study Course
500+ lessons 3000+ practice problems 800+ HD solutions

Re: In a particular course, only two grades are given all semester: the &nbs [#permalink] 26 Jan 2018, 09:47
Display posts from previous: Sort by

# In a particular course, only two grades are given all semester: the

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

 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®.