Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget Test Prep
GMATOnDemandStart anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 563 reviewsTarget Test Prep

Did not understand the solution to this Ratio problem

Expert replies
Post new topic Post Reply
Subscribe topic
Previous Topic Next Topic
Junior | Next Rank: 30 Posts
Posts: 24
Joined: Mon Jan 24, 2011 1:37 pm
by madhan_dc » Fri Jan 28, 2011 6:13 pm
Problem: A students grade in a course is determined by 4 quizzes and one exam. If the exam counts twice as much as each of the quizzes, what fraction of the final grade if determined by the exam?

can someone please explain a solution.

answer is 1/3
Top
Join the discussion
Source: — Problem Solving |
Master | Next Rank: 500 Posts
Posts: 139
Joined: Fri Nov 26, 2010 4:45 pmFollowed by: 1 member
Location: Boston
Thanked: 20 times
GMAT Score:720

by stormier » Fri Jan 28, 2011 6:33 pm
madhan_dc wrote:Problem: A students grade in a course is determined by 4 quizzes and one exam. If the exam counts twice as much as each of the quizzes, what fraction of the final grade if determined by the exam?

can someone please explain a solution.

answer is 1/3
The problem says that an exam counts twice as much as a quiz. In other words, the weighting for exam is twice that of the quiz.

So if the student takes total of 4 quizzes and 1 exam, one can say that he took 6 quizzes (all of equal importance or weighting)

Out of these 6 quizzes which count equally towards the grade, 2 are determined by the exam.

Thus required fraction = 2q/(4q+1e) = 2q/(4q+2q) = 1/3
Top
Join the discussion

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 3835
Joined: Fri Apr 02, 2010 10:00 pmFollowed by: 523 members
Location: Milpitas, CA
Thanked: 1854 times
GMAT Score:770

by Anurag@Gurome » Sat Jan 29, 2011 12:48 am
madhan_dc wrote:Problem: A students grade in a course is determined by 4 quizzes and one exam. If the exam counts twice as much as each of the quizzes, what fraction of the final grade if determined by the exam?
One exam is equivalent to two quizzes.
Hence, total = (1 exam + 4 quizzes) = 6 quizzes

Required fraction = (1 exam)/(total) = (2 quizzes)/(6 quizzes) = 1/3
Anurag Mairal, Ph.D., MBA
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)

Join Our Facebook Groups
GMAT with Gurome
https://www.facebook.com/groups/272466352793633/
Admissions with Gurome
https://www.facebook.com/groups/461459690536574/
Career Advising with Gurome
https://www.facebook.com/groups/360435787349781/
Top
Join the discussion
User avatar
Master | Next Rank: 500 Posts
Posts: 286
Joined: Tue Sep 21, 2010 5:36 pmFollowed by: 5 members
Location: Kolkata, India
Thanked: 11 times

by pesfunk » Sat Jan 29, 2011 2:57 am
Let the weight of one quiz be X

So total weight of all 4 quizzes = 4X

Weight of Exam = 2X (Given)

So total weight = 4X + 2X = 6X

Answer = 2X / 6X = 1/3
madhan_dc wrote:Problem: A students grade in a course is determined by 4 quizzes and one exam. If the exam counts twice as much as each of the quizzes, what fraction of the final grade if determined by the exam?

can someone please explain a solution.

answer is 1/3
Top
Join the discussion
User avatar
GMAT Instructor
Posts: 15539
Joined: Tue May 25, 2010 12:04 pmFollowed by: 1906 members
Location: New York, NY
Thanked: 13060 times
GMAT Score:790

by GMATGuruNY » Sat Jan 29, 2011 3:57 am
madhan_dc wrote:Problem: A students grade in a course is determined by 4 quizzes and one exam. If the exam counts twice as much as each of the quizzes, what fraction of the final grade if determined by the exam?

can someone please explain a solution.

answer is 1/3
An easy and efficient approach would be to plug in values that satisfy the conditions given.

Let quiz = 1 point, exam = 2 points.
Quiz points = 4*1 = 4.
Exam points = 1*2 = 2.
Total points = 4+2 = 6.
Exam/total = 2/6 = 1/3.
Private tutor exclusively for the GMAT and GRE, with over 20 years of experience.
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.

As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.

For more information, please email me (Mitch Hunt) at [email protected].
Student Review #1
Student Review #2
Student Review #3
Top
Join the discussion
Junior | Next Rank: 30 Posts
Posts: 24
Joined: Mon Jan 24, 2011 1:37 pm

by madhan_dc » Sat Jan 29, 2011 5:47 am
Thank you all.
Top
Join the discussion