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:
Do RC/MSR passages scare you? e-GMAT is conducting a masterclass to help you learn – Learn effective reading strategies, Tackle difficult RC & MSR with confidence, and Excel in timed test environment
Join us in a comprehensive talk about the F1 Student Visa process with Travis Feuerbacher, former U.S. Visa Officer and licensed U.S. immigration attorney having expertise working for the U.S. Department of State
Ready to skyrocket your career with an MBA? Get ahead with our curated list of FREE courses and resources to kickstart your journey into business education!
Are you attending an MBA or Masters program outside in the US or Europe and wondering how to finance your studies? In this exclusive conversation, we discuss the collateral-free non-cosigner education loans...
Solve 30 high quality GMAT Focus practice questions in timed conditions. Take this GMAT practise test live with peers, analyze your GMAT study progress, and see where you stand in the GMAT student pool.
After just 3 months of studying with the TTP GMAT Focus course, Conner scored an incredible 755 (Q89/V90/DI83) on the GMAT Focus. In this live interview, he shares how he achieved his outstanding 755 (100%) GMAT Focus score on test day.
What do András from Hungary, Pablo from Mexico, Conner from the United States, Giorgio from Italy, Leo from Germany, and Rishab from India have in common? They all earned top scores on the GMAT Focus Edition using the Target Test Prep course!
Join us for an exclusive one-day event focused on mastering the GMAT and maximizing your preparation resources! Here's what you can expect: Don't miss out on this invaluable opportunity to supercharge your GMAT preparation journey.
To visualize the idea, think of a system of linear equations as straight lines on a graph. The solution to any system of equations is one and only one point where these lines intersect. With more unknowns than equations, you will find many such solutions.
Try and work with a smaller example: 3 unknowns and 2 equations.
I thought about the question and since 20,000 is given as the amount they together spend annually, then it seems that 20,000 must be the difference in the ratios of 4:3 and 3:2. All of the ratios are met if the below is true:
40,000 = Sarah's annual income 30,000 = Mary's annual income
30,000 = Sarah's savings 20,000 = Mary's savings
Then the 20,000 spending is split equally (10,000 each)
I was wondering the same thing. I believe the correct answer should be C.
since we get a concrete number for the amount of spending between the two people, we can set up 4x+3x-20000=5x... and we get the unknown multiplier of 10000 and figure out the annual income of both people.
The problem is that you are both assuming that the quantity by which each part of the ratio is "scaled" is the same. That is not correct. In doing so, you are using an additional constraint not described in the original problem. Look at the following example.
Sara's income (S) could be 40000, but could also be 20000. If S = 20000, according to the first statement, Mary's income (M) = 3*S/4. Then, if S = 20000, M = 15000.
In this case, the spending of Sara (z) is 11000 and the spending of Mary (y) is 9000 (you can get these numbers using all the information given by the statements). Therefore,
The red numbers are the quantities by which each part of the ratio is multiplied in order to obtain the actual incomes, spendings, and savings (Manhattan GMAT defines this quantity as the "Unknown Multiplier"). You can see that they are different. It happens, however, that in the case of S = 40000 and M = 30000 (the one you described) these quantities (your x´s) are both equal to 10000.
Archived Topic
Hi there,
Archived GMAT Club Tests question - no more replies possible.