• 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
  • PrepScholar GMAT
    5 Day FREE Trial
    Study Smarter, Not Harder

    Available with Beat the GMAT members only code

    MORE DETAILS
    PrepScholar GMAT
  • Veritas Prep
    Free Veritas GMAT Class
    Experience Lesson 1 Live Free

    Available with Beat the GMAT members only code

    MORE DETAILS
    Veritas Prep
  • 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
  • Magoosh
    Magoosh
    Study with Magoosh GMAT prep

    Available with Beat the GMAT members only code

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

    Available with Beat the GMAT members only code

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

    Available with Beat the GMAT members only code

    MORE DETAILS
    Economist Test Prep

Carmen's weekly pay

This topic has 1 expert reply and 1 member reply
EricKryk Senior | Next Rank: 100 Posts Default Avatar
Joined
31 Mar 2009
Posted:
83 messages
Thanked:
3 times

Carmen's weekly pay

Post Fri Feb 21, 2014 8:31 am
Elapsed Time: 00:00
  • Lap #[LAPCOUNT] ([LAPTIME])
    Carmen currently works 30 hours per week at her part-time job. If her gross hourly wage were to increase by $1.50, how many fewer hours could she work per week and still earn the same gross weekly pay as before the increase?

    1) Her gross weekly pay is currently $225

    2) An increase of $1.50 would represent an increase of 20 percent of her gross hourly wage

    Need free GMAT or MBA advice from an expert? Register for Beat The GMAT now and post your question in these forums!

    GMAT/MBA Expert

    Post Fri Feb 21, 2014 8:47 am
    weekly pay = wage * hours. If we knew Carmen's initial wage, we would know the new wage, and we would know how to adjust hours to keep wage * hours constant. Rephrase to: "What is Carmen's wage"?. Each statement gives us a way to find this wage.

    The full solution below is taken from the GMATFix App.



    -Patrick

    _________________


      Ask me about tutoring.

    Post Fri Feb 21, 2014 2:29 pm
    Hi EricKryk,

    This DS question includes some great "system" short-cuts that are work knowing:

    We're told that Carmen works 30 hours per week at a certain pay rate. We're told that her hourly pay will increase by $1.50. The question asks how many FEWER hours would she need to work to get the same total weekly pay.

    From the prompt, we can create the following equations:

    30(X) = pay/week X = pay/hour
    (30-H)(X + 1.50) = same pay/week H = number of fewer hours

    Fact 1: Weekly pay = 225

    With this info, we now know….

    30X = 225, so we CAN solve for X. With THAT value, we can plug into the second equation:

    (30-H)(Value + 1.50) = 225

    With 1 variable and 1 equation, we can solve for H and answer the question.
    Fact 1 is SUFFICIENT

    Fact 2: The $1.50 increase would be an increase of 20% over the normal hourly wage

    This info can be rewritten as…

    1.50 = .2(X)

    Just as in Fact 1, we CAN solve for X, then we CAN solve for H.
    Fact 2 is SUFFICIENT

    Final Answer: D

    GMAT assassins aren't born, they're made,
    Rich

    _________________
    Contact Rich at Rich.C@empowergmat.com

    Best Conversation Starters

    1 Vincen 152 topics
    2 lheiannie07 61 topics
    3 Roland2rule 49 topics
    4 ardz24 40 topics
    5 LUANDATO 32 topics
    See More Top Beat The GMAT Members...

    Most Active Experts

    1 image description Brent@GMATPrepNow

    GMAT Prep Now Teacher

    141 posts
    2 image description EconomistGMATTutor

    The Economist GMAT Tutor

    107 posts
    3 image description GMATGuruNY

    The Princeton Review Teacher

    106 posts
    4 image description Rich.C@EMPOWERgma...

    EMPOWERgmat

    104 posts
    5 image description Matt@VeritasPrep

    Veritas Prep

    76 posts
    See More Top Beat The GMAT Experts