NEW HERE? LEARN MORE
closeclose
Last visit was: 25 Apr 2024, 10:40 It is currently 25 Apr 2024, 10:40
Decision Tracker
My Rewards
New posts
New comers' posts

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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel

In a Mathematics exam. a student scored 30% marks in the first paper,

SORT BY:
Date
Kudos
Tags:
Find Similar Topics 
Show Tags
Hide Tags
User avatar
shubhangi
Manager
Manager
Joined: 30 Aug 2003
Posts: 183
Own Kudos [?]: 157 [10]
Given Kudos: 0
Location: dallas , tx
Send PM
In a Mathematics exam. a student scored 30% marks in the first paper, [#permalink] New post   09 Oct 2003, 10:14
4
Kudos
6
Bookmarks
00:00
A
B
C
D
E

Difficulty:

35% (medium)

Question Stats:

77% (02:15) correct 23% (02:22) wrong based on 213 sessions
Hide Show timer Statistics
In a Mathematics exam. a student scored 30% marks in the first paper, out of a total of 180. How much should he score in second paper out of a total of 150 ,if he is to get an overall average of at least 50% ?

A. 70%
B. 74%
C. 76%
D. 80%
E. 82%
ShowHide Answer
Official Answer
B
User avatar
anandnk
Director
Director
Joined: 30 Oct 2003
Posts: 899
Own Kudos [?]: 373 [0]
Given Kudos: 0
Location: NewJersey USA
Send PM
In a Mathematics exam. a student scored 30% marks in the first paper, [#permalink] New post   02 Jan 2004, 20:28
Average = total score / number of tests

total score = 180 + 150 = 330
50% average = 330 * 0.5 = 165 ( he needs to score this )
He has scored 30% in the first test with 180 marks
so he has already scored 0.3 * 180 = 54
Now He needs to score 165-54 = 111 in the second test.
So the precentage = 111/150 = 74
( 0.74 * 150 = 74 * 1.5 = 74 + 74/2 = 74 + 37 = 111 )
User avatar
L
ScottTargetTestPrep
Target Test Prep Representative
Joined: 14 Oct 2015
Status:Founder & CEO
Affiliations: Target Test Prep
Posts: 18761
Own Kudos [?]: 22052 [0]
Given Kudos: 283
Location: United States (CA)
Send PM
Re: In a Mathematics exam. a student scored 30% marks in the first paper, [#permalink] New post   02 Mar 2020, 07:09
Expert Reply
shubhangi wrote:
In a Mathematics exam. a student scored 30% marks in the first paper, out of a total of 180. How much should he score in second paper out of a total of 150 ,if he is to get an overall average of at least 50% ?

A. 70%
B. 74%
C. 76%
D. 80%
E. 82%


We can create the equation:

0.3(180) + (n/100)(150) ≥ 0.5(330)

54 + 3n/2 ≥ 165

3n/2 ≥ 111

3n ≥ 222

n ≥ 74

Answer: B
User avatar
L
Abhishek009
Board of Directors
Joined: 11 Jun 2011
Status:QA & VA Forum Moderator
Posts: 6072
Own Kudos [?]: 4689 [0]
Given Kudos: 463
Location: India
GPA: 3.5
WE:Business Development (Commercial Banking)
Send PM
GMAT ToolKit User
Re: In a Mathematics exam. a student scored 30% marks in the first paper, [#permalink] New post   02 Mar 2020, 08:09
shubhangi wrote:
In a Mathematics exam. a student scored 30% marks in the first paper, out of a total of 180. How much should he score in second paper out of a total of 150 ,if he is to get an overall average of at least 50% ?

A. 70%
B. 74%
C. 76%
D. 80%
E. 82%

An overall average of at least 50% is \(\frac{( 180 + 150 )}{2} = 165\)

Score in paper I is \(\frac{3}{10}*180 = 54\)

So he must score 165 - 54 = 111 in paper II out of 150

So his % score must be \(\frac{111}{150}*100\) = 74 %, Answer must be (B)
User avatar
bumpbot
Non-Human User
Joined: 09 Sep 2013
Posts: 32674
Own Kudos [?]: 821 [0]
Given Kudos: 0
Send PM
Re: In a Mathematics exam. a student scored 30% marks in the first paper, [#permalink] New post   24 Nov 2022, 06:18
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
GMAT Club Bot
gmatclubot
Re: In a Mathematics exam. a student scored 30% marks in the first paper, [#permalink]
24 Nov 2022, 06:18
Moderators:
Bunuel
Math Expert
92914 posts
yashikaaggarwal
Senior Moderator - Masters Forum
3137 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne
Main navigation
GMAT Resources
Partners
MBA Resources
www.gmac.com|www.mba.com | | GMAT Club Rules | Terms and Conditions