• 7 CATs FREE!
    If you earn 100 Forum Points

    Engage in the Beat The GMAT forums to earn
    100 points for $49 worth of Veritas practice GMATs FREE

    Veritas Prep
    VERITAS PRACTICE GMAT EXAMS
    Earn 10 Points Per Post
    Earn 10 Points Per Thanks
    Earn 10 Points Per Upvote
    REDEEM NOW

If Nicole worked 20% more this week than she worked last

This topic has 1 expert reply and 0 member replies

If Nicole worked 20% more this week than she worked last

Post

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

Difficult



Source: Manhattan Prep

If Nicole worked 20% more this week than she worked last week, how many hours did she work last week?

1) Nicole worked 36 hours this week.
2) Nicole worked 6 more hours this week than she worked last week.

The OA is D.

  • +1 Upvote Post
  • Quote
  • Flag
Post
BTGmoderatorLU wrote:
Source: Manhattan Prep

If Nicole worked 20% more this week than she worked last week, how many hours did she work last week?

1) Nicole worked 36 hours this week.
2) Nicole worked 6 more hours this week than she worked last week.
$${\rm{this}}\,\, = \,\,{\rm{\# }}\,\,{\rm{h}}\,\,{\rm{Nicole}}\,\,{\rm{worked}}\,\,{\rm{this}}\,\,{\rm{week}}$$
$${\rm{last}}\,\, = \,\,{\rm{\# }}\,\,{\rm{h}}\,\,{\rm{Nicole}}\,\,{\rm{worked}}\,\,{\rm{last}}\,\,{\rm{week}}$$
$${\rm{this}}\,\,{\rm{ = }}\,\,{6 \over 5}\left( {{\rm{last}}} \right)\,\,\,\,\,\left( * \right)\,$$
$$? = {\rm{last}}$$
$$\left( 1 \right)\,\,{\rm{this}} = 36\,\,\mathop = \limits^{\left( * \right)} \,\,{6 \over 5}\left( {{\rm{last}}} \right)\,\,\,\,\, \Rightarrow \,\,\,\,\,? = {5 \over 6}\left( {36} \right)\,\,\,\, \Rightarrow \,\,\,\,{\rm{SUFF}}{\rm{.}}$$
$$\left( 2 \right)\,\,{\rm{this}} - {\rm{last}} = 6\,\,\,\left[ {\rm{h}} \right]\,\,\,\,\,\,\mathop \Rightarrow \limits^{\left( * \right)} \,\,\,\,\,{6 \over 5}\left( {{\rm{last}}} \right) - {\rm{last}} = {1 \over 5}\left( {{\rm{last}}} \right) = {\rm{6}}\,\,\,\,\, \Rightarrow \,\,\,\,\,? = 5 \cdot 6\,\,\,\, \Rightarrow \,\,\,\,\,{\rm{SUFF}}{\rm{.}}$$

This solution follows the notations and rationale taught in the GMATH method.

Regards,
Fabio.

_________________
Fabio Skilnik :: https://GMATH.net (Math for the GMAT) or https://GMATH.com.br (Portuguese version)
Course release PROMO : finish our test drive till 30/Nov with (at least) 50 correct answers out of 92 (12-questions Mock included) to gain a 50% discount!

  • +1 Upvote Post
  • Quote
  • Flag
  • e-gmat Exclusive Offer
    Get 300+ Practice Questions
    25 Video lessons and 6 Webinars for FREE

    Available with Beat the GMAT members only code

    MORE DETAILS
    e-gmat Exclusive Offer
  • Varsity Tutors
    Award-winning private GMAT tutoring
    Register now and save up to $200

    Available with Beat the GMAT members only code

    MORE DETAILS
    Varsity Tutors
  • Target Test Prep
    5-Day Free Trial
    5-day free, full-access trial TTP Quant

    Available with Beat the GMAT members only code

    MORE DETAILS
    Target Test Prep
  • Kaplan Test Prep
    Free Practice Test & Review
    How would you score if you took the GMAT

    Available with Beat the GMAT members only code

    MORE DETAILS
    Kaplan Test Prep
  • Economist Test Prep
    Free Trial & Practice Exam
    BEAT THE GMAT EXCLUSIVE

    Available with Beat the GMAT members only code

    MORE DETAILS
    Economist Test Prep
  • PrepScholar GMAT
    5 Day FREE Trial
    Study Smarter, Not Harder

    Available with Beat the GMAT members only code

    MORE DETAILS
    PrepScholar GMAT
  • The Princeton Review
    FREE GMAT Exam
    Know how you'd score today for $0

    Available with Beat the GMAT members only code

    MORE DETAILS
    The Princeton Review
  • Veritas Prep
    Free Veritas GMAT Class
    Experience Lesson 1 Live Free

    Available with Beat the GMAT members only code

    MORE DETAILS
    Veritas Prep
  • EMPOWERgmat Slider
    1 Hour Free
    BEAT THE GMAT EXCLUSIVE

    Available with Beat the GMAT members only code

    MORE DETAILS
    EMPOWERgmat Slider
  • Magoosh
    Magoosh
    Study with Magoosh GMAT prep

    Available with Beat the GMAT members only code

    MORE DETAILS
    Magoosh

Top First Responders*

1 fskilnik@GMATH 90 first replies
2 Brent@GMATPrepNow 52 first replies
3 Jay@ManhattanReview 45 first replies
4 GMATGuruNY 31 first replies
5 Rich.C@EMPOWERgma... 24 first replies
* Only counts replies to topics started in last 30 days
See More Top Beat The GMAT Members

Most Active Experts

1 image description fskilnik@GMATH

GMATH Teacher

181 posts
2 image description Scott@TargetTestPrep

Target Test Prep

150 posts
3 image description Brent@GMATPrepNow

GMAT Prep Now Teacher

111 posts
4 image description Max@Math Revolution

Math Revolution

91 posts
5 image description Jay@ManhattanReview

Manhattan Review

78 posts
See More Top Beat The GMAT Experts