Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized for You
we will pick new questions that match your level based on your Timer History
Track Your Progress
every week, we’ll send you an estimated GMAT score based on your performance
Practice Pays
we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
Carolyn and Brett - nicely explained what is the typical day of a UCLA student. I am posting below recording of the webinar for those who could't attend this session.
Each week we'll be posting several questions from The Official Guide For GMAT® Quantitative Review, 2ND Edition and then after couple of days we'll provide Official Answer (OA) to them along with a slution.
We'll be glad if you participate in development of this project: 1. Please provide your solutions to the questions; 2. Please vote for the best solutions by pressing Kudos button; 3. Please vote for the questions themselves by pressing Kudos button; 4. Please share your views on difficulty level of the questions, so that we have most precise evaluation.
If l and w represent the length and width, respectively, of the rectangle above, what is the perimeter?
(1) 2l + w = 40 (2) l + w = 25
Target question:What is the perimeter? This is a great candidate for REPHRASING the target question.
Aside: We have a free video with tips on rephrasing the target question (see below)
If L and W represent the rectangle's length and width, then the perimeter = 2L + 2W. So, we can REPHRASE the target question as...
REPHRASED target question:What is the value of 2L + 2W?
Statement 1: 2L + W = 40 This statement does not FEEL sufficient to answer the rephrased target question. So, I'm going to PLUG IN numbers. There are several values of L and W that satisfy statement 1. Here are two: Case a: L = 5 and W = 30, in which case 2L + 2W = 70 Case b: L = 10 and W = 20, in which case 2L + 2W = 60 Since we cannot answer the REPHRASED target question with certainty, statement 1 is NOT SUFFICIENT
Statement 2: L + W = 25 If we take this equation and multiply both sides by 2, we get: 2L + 2W = 50 PERFECT - we have answered the REPHRASED target question! Since we can answer the REPHRASED target question with certainty, statement 2 is SUFFICIENT
Answer: B
Cheers, Brent
RELATED VIDEO
_________________
Test confidently with gmatprepnow.com
gmatclubot
Re: If l and w represent the length and width, respectively, of &nbs
[#permalink]
19 Apr 2018, 14:02
close
85% (00:38) correct 
