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

    Available with Beat the GMAT members only code

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

    Available with Beat the GMAT members only code

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

    Available with Beat the GMAT members only code

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

    Available with Beat the GMAT members only code

    MORE DETAILS
    EMPOWERgmat Slider

For a certain car repair, the total charge consisted

This topic has 3 expert replies and 1 member reply
jjjinapinch Senior | Next Rank: 100 Posts Default Avatar
Joined
24 Jul 2017
Posted:
83 messages

For a certain car repair, the total charge consisted

Post Thu Jul 27, 2017 12:09 pm
Elapsed Time: 00:00
  • Lap #[LAPCOUNT] ([LAPTIME])
    For a certain car repair, the total charge consisted of a charge for parts, a charge for labor, and a 6 percent sales tax on both the charge for parts and the charge for labor. If the charge for parts, excluding sales tax, was $50.00, what was the total charge for the repair?

    (1) The sales tax on the charge for labor was $9.60
    (2) The total sales tax was $12.60

    Official Guide question
    Answer: D

    Need free GMAT or MBA advice from an expert? Register for Beat The GMAT now and post your question in these forums!
    Post Thu Jul 27, 2017 11:23 pm
    jjjinapinch wrote:
    For a certain car repair, the total charge consisted of a charge for parts, a charge for labor, and a 6 percent sales tax on both the charge for parts and the charge for labor. If the charge for parts, excluding sales tax, was $50.00, what was the total charge for the repair?

    (1) The sales tax on the charge for labor was $9.60
    (2) The total sales tax was $12.60

    Official Guide question
    Answer: D
    It is given that

    the charge for parts, excluding sales tax = 50
    thus, the charge for parts, including sales tax = 50 + sales tax = 50 + 6% of 50 = 50 + 3 = 53

    We have to get the total charge for the repair = the charge for parts + the charge for labor.

    Statement 1: The sales tax on the charge for labor was $9.60.

    Sales Tax = 9.60 = 6% of Charge for labour;

    9.60 = (6/100) * Charge for labour;

    Charge for labor, excluding sates tax = 960/6 = 160.
    Charge for labor, including sates tax = 160 + 9.60 = 169.60

    The total charge for the repair = the charge for parts + the charge for labor

    = 53 + 169.60 = unique value! Sufficient.

    Statement 2: The total sales tax was $12.60.

    The total sales tax = 12.60 = Sales tax on parts + Sales tax on labour

    We know that Sales tax on parts = 3, thus Sales tax on labor = 12.60 - 3 = 9.60.

    Now the information is the same as we get in Statement 1. Sufficient.

    The correct answer: A

    Hope this helps!

    Download free ebook: Manhattan Review GMAT Quantitative Question Bank Guide

    -Jay
    _________________
    Manhattan Review GMAT Prep

    Locations: New York | Singapore | Doha | Lausanne | and many more...

    Schedule your free consultation with an experienced GMAT Prep Advisor! Click here.

    Post Sat Jul 29, 2017 10:27 am
    Hi jjjinapinch,

    This DS question has a built-in Algebra 'shortcut' that you can take advantage of (more than once) to avoid some of the math and get to the correct answer.

    We're told that the TOTAL charge for a car repair includes 3 things: a charge for parts, a charge for labor and a 6% sales tax on both of those 2 charges. We're told that the charge for PARTS (not including the tax) was $50. We're asked for the TOTAL charge for the repair.

    With the given information, we can create the following calculation to solve:

    Total Cost = (L + 50)(1.06)

    Thus, if we have the value of L, then we can determine the total cost. In addition, if we have the exact value of the tax, then we can 'work backwards', figure out the value of L and THEN determine the total cost.

    1) The sales tax on the charge for labor was $9.60

    With this fact, we can create the following equation:

    (L)(.06) = $9.60

    This is one simple variable and one equation, so we CAN solve for L (and there would be just one solution). The shortcut is that we don't actually have to do that math to know that there would be just one solution. As noted, with the value of L, we CAN answer the question.
    Fact 1 is SUFFICIENT.

    2) The total sales tax was $12.60

    Just as we did in Fact 1, we can create an equation with the information in Fact 2:

    (L + 50)(.06) = $12.60

    Here too, we have one simple variable and one equation. We can solve for L (even though we don't have to do that math) and answer the given question.
    Fact 2 is SUFFICIENT.

    Final Answer: D

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

    _________________
    Contact Rich at Rich.C@empowergmat.com

    Mo2men Legendary Member Default Avatar
    Joined
    25 Sep 2015
    Posted:
    535 messages
    Followed by:
    5 members
    Thanked:
    14 times
    Post Sun Jul 30, 2017 4:38 am
    Jay@ManhattanReview wrote:
    jjjinapinch wrote:
    For a certain car repair, the total charge consisted of a charge for parts, a charge for labor, and a 6 percent sales tax on both the charge for parts and the charge for labor. If the charge for parts, excluding sales tax, was $50.00, what was the total charge for the repair?

    (1) The sales tax on the charge for labor was $9.60
    (2) The total sales tax was $12.60

    Official Guide question
    Answer: D
    It is given that

    the charge for parts, excluding sales tax = 50
    thus, the charge for parts, including sales tax = 50 + sales tax = 50 + 6% of 50 = 50 + 3 = 53

    We have to get the total charge for the repair = the charge for parts + the charge for labor.

    Statement 1: The sales tax on the charge for labor was $9.60.

    Sales Tax = 9.60 = 6% of Charge for labour;

    9.60 = (6/100) * Charge for labour;

    Charge for labor, excluding sates tax = 960/6 = 160.
    Charge for labor, including sates tax = 160 + 9.60 = 169.60

    The total charge for the repair = the charge for parts + the charge for labor

    = 53 + 169.60 = unique value! Sufficient.

    Statement 2: The total sales tax was $12.60.

    The total sales tax = 12.60 = Sales tax on parts + Sales tax on labour

    We know that Sales tax on parts = 3, thus Sales tax on labor = 12.60 - 3 = 9.60.

    Now the information is the same as we get in Statement 1. Sufficient.

    The correct answer: A

    Hope this helps!

    Download free ebook: Manhattan Review GMAT Quantitative Question Bank Guide

    -Jay
    _________________
    Hi Jay,

    Although you reached solution, you wrote down that Answer is A, while it should be D
    Thanks

    Post Wed Aug 09, 2017 11:30 am
    jjjinapinch wrote:
    For a certain car repair, the total charge consisted of a charge for parts, a charge for labor, and a 6 percent sales tax on both the charge for parts and the charge for labor. If the charge for parts, excluding sales tax, was $50.00, what was the total charge for the repair?

    (1) The sales tax on the charge for labor was $9.60
    (2) The total sales tax was $12.60

    Official Guide question
    Answer: D
    We are given that for a certain car repair, the total charge consisted of a charge for parts, a charge for labor, and a 6 percent sales tax on both the charge for parts and the charge for labor. We also are given that the charge for parts, excluding tax, was $50. We can say the following:

    Charge for parts = $50

    Thus, the total charge for parts, including sales tax = 1.06 x 50 = $53.

    Charge for labor = L

    Thus, the total charge for labor, including sales tax = L + 0.06L = 1.06L

    Thus, the total cost of the repair, including the 6 percent sales tax, is:

    Total charges = 53 + 1.06L

    As we can see, if we can determine the charge for labor, we can determine the total charges for parts and labor.

    Statement One Alone:

    The sales tax on the charge for labor was $9.60.

    Using the information in statement one, we can create the following equation for the sales tax for the labor:

    0.06L = 9.60

    We see that we can determine a value for L, and thus we have enough information to determine a value for 53 + 1.06L. Statement one alone is sufficient to answer the question.

    Statement Two Alone:

    The total sales tax was $12.60.

    Using the information in statement two, we can create the following sales tax equation:

    0.06(50) + 0.06L = 12.60

    We see that we can determine a value for L, and thus we have enough information to determine a value for 53 + 1.06L. Statement two alone is sufficient to answer the question.

    Answer: D

    _________________
    Jeffrey Miller Head of GMAT Instruction

    Best Conversation Starters

    1 lheiannie07 111 topics
    2 ardz24 64 topics
    3 LUANDATO 62 topics
    4 swerve 60 topics
    5 AAPL 57 topics
    See More Top Beat The GMAT Members...

    Most Active Experts

    1 image description Brent@GMATPrepNow

    GMAT Prep Now Teacher

    160 posts
    2 image description EconomistGMATTutor

    The Economist GMAT Tutor

    130 posts
    3 image description Rich.C@EMPOWERgma...

    EMPOWERgmat

    122 posts
    4 image description GMATGuruNY

    The Princeton Review Teacher

    122 posts
    5 image description Scott@TargetTestPrep

    Target Test Prep

    118 posts
    See More Top Beat The GMAT Experts