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

A waitress's income consist of her salary and tips. During

Expert replies
Post new topic Post Reply
Subscribe topic
Previous Topic Next Topic
Moderator
Posts: 2749
Joined: Sun Oct 29, 2017 2:08 pmFollowed by: 2 members
by AAPL » Tue Jan 29, 2019 3:53 am
Timer
00:00
Your answer
Difficulty–

right wrong

Pick an answer to see how members did

GMAT Prep

A waitress's consist of her salary and tips. During one week, her tips were 5/4 of her salary. What fraction of her income for the week came from tips?

A. 1/9
B. 1/6
C. 1/3
D. 4/9
E. 5/9

OA E
Top
Join the discussion
Source: — Problem Solving |
User avatar
GMAT Instructor
Posts: 1449
Joined: Sat Oct 09, 2010 2:16 pmFollowed by: 33 members
Thanked: 59 times

by fskilnik@GMATH » Tue Jan 29, 2019 4:07 am
AAPL wrote:GMAT Prep

A waitress's income consist of her salary and tips. During one week, her tips were 5/4 of her salary. What fraction of her income for the week came from tips?

A. 1/9
B. 1/6
C. 1/3
D. 4/9
E. 5/9
$$? = {{{\rm{tips}}} \over {{\rm{salary}}\,\,{\rm{and}}\,\,{\rm{tips}}}} = {{{5 \over 4}\left( {{\rm{salary}}} \right)} \over {\left( {{4 \over 4} + {5 \over 4}} \right)\left( {{\rm{salary}}} \right)}} = {5 \over 9}$$

Alternate way (exploring a particular case):

$${\rm{salary}} = 4\,\,\, \Rightarrow \,\,\,{\rm{tips}} = 5\,\,\,\,\,\, \Rightarrow \,\,\,\,\,\,\,? = {5 \over {4 + 5}} = {5 \over 9}$$

We follow the notations and rationale taught in the GMATH method.

Regards,
Fabio.
Fabio Skilnik :: GMATH method creator ( Math for the GMAT)
English-speakers :: https://www.gmath.net
Portuguese-speakers :: https://www.gmath.com.br
Top
Join the discussion

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 16206
Joined: Mon Dec 08, 2008 6:26 pmFollowed by: 1268 members
Location: Vancouver, BC
Thanked: 5254 times
GMAT Score:770

by Brent@GMATPrepNow » Tue Jan 29, 2019 5:42 am
AAPL wrote:GMAT Prep

A waitress's income consist of her salary and tips. During one week, her tips were 5/4 of her salary. What fraction of her income for the week came from tips?

A. 1/9
B. 1/6
C. 1/3
D. 4/9
E. 5/9
APPROACH #1 - start with a convenient value of the server's salary
Let's say her salary is $4

GIVEN: her tips were 5/4 of her salary
5/4 of $4 = $5
So, her tip total was $5

What fraction of her income for the week came from tips?
Income = salary + tips
= $4 + $5 = $9
Fraction = $5 /$9

Answer: E
-------------------------
APPROACH #2 - Algebraic

Let x = her salary (in dollars)

GIVEN: her tips were 5/4 of her salary
So, tips = 5/4 of x
= 5x/4
So, her tip total was 5x/4 dollars

What fraction of her income for the week came from tips?
Income = salary + tips
= x + 5x/4
= 4x/4 + 5x/4
= 9x/4
Fraction = (5x/4) /9x/4
= (5x/4)(4/9x)
= 5/4

Answer: E

Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
Image
Top
Join the discussion

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 8246
Joined: Sat Apr 25, 2015 10:56 amFollowed by: 29 members
Location: Los Angeles, CA
Thanked: 43 times

by Scott@TargetTestPrep » Thu Jan 31, 2019 5:36 pm
AAPL wrote:GMAT Prep

A waitress's consist of her salary and tips. During one week, her tips were 5/4 of her salary. What fraction of her income for the week came from tips?

A. 1/9
B. 1/6
C. 1/3
D. 4/9
E. 5/9

OA E
We can let x = her salary for the week and so her tips = 5x/4.

To determine the fraction that her tips represent out of her total income, we use: fraction = tips/total income. Thus, her tips are (5x/4)/(x + 5x/4) = (5x/4)/(4x/4 + 5x/4) = (5x/4)/(9x/4) = 5/9 of her income.

Alternate Solution:

Since her tips are 5/4 of her salary, she made more from the tips than her salary. Thus, the fraction of her income for the week that came from the tips must be greater than 1/2. The only answer choice that is greater than 1/2 is E.

Answer: E

Scott Woodbury-Stewart
Founder and CEO
[email protected]

Image

See why Target Test Prep is rated 5 out of 5 stars on BEAT the GMAT. Read our reviews

ImageImage
Top
Join the discussion