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:
Want to score 90 percentile or higher on GMAT CR? Attend this free webinar to learn how to pre-think assumptions and solve the most challenging questions in less than 2 minutes.
2 laptops and 6 desktops were bought for office needs. If a laptop is twice as expensive as a desktop, what percent of the money was spent on laptops?
A. 30 B. 40 C. 48 D. 50 E. 60
Let \(x\) denote the price of a desktop. The money spent \(= 2(2x) + 6x = 10x\). The money spent on laptops \(= 2(2x) = 4x\). The answer is \(\frac{4x}{10x}*100\% = 40\%\).
Let T be the total money spent on buying 2 laptops (L) and 6 desktops (D) then , 2L + 6D = T Also, given L = 2D => 2L + 6 (L/2) = T => L = T/5 which implies to 20% of the total money spent. Since, 2 laptops were bought so total percentage of money spent = 2* 20% = 40% (option no. B)
I used Test IT method: (we are looking for the ratio of $ spent on Laptops to all $ spent on all 8 devices) 1) since L = 2D, we'll let "L" be $4 and "D" be $2. 2) and since we have 2 L's and 6 D's, we'll get the total spending: 2(4) + 6(2) = $20 total cost 3) notice from previous step that 2 L's cost $8, and that total is $20, hence we have 8/20, or 40/100 ---> 40%