By Miranda Menestrina
- **Jan 1**, 08:42 AM

Math
How many liters of pure alcohol must be added to a 40-liter solution that is 10% alcohol by volume in order to double the alcohol proportion?
A. 4
B. 5
C. 10
D. 20
E. 40
Question Discussion & Explanation
Correct Answer - B - (click and drag your mouse to...

Read More

By Kaplan
- **Dec 31**, 03:00 AM

Don’t buy into the myths about your GMAT score. Practice the strategy and critical thinking skills you need to dominate the test!Photo Credit: Peter Van Lancker via Compfight cc
At Kaplan Test Prep, we talk to future MBAs every day, so the GMAT is a hot...

Read More

By Kaplan
- **Dec 30**, 03:00 AM

GMAT data sufficiency questions test your ability to analyze a quantitative problem and recognize which information is necessary to figure out the solution. What a data sufficiency question does NOT test you on is your ability to calculate and number-crunch. A simpler way of addressing...

Read More

By Miranda Menestrina
- **Dec 29**, 21:41 PM

Math
Three workers, A, B, and C, can complete a certain task in 10, 5 and x hours respectively. A starts working alone and 2 hours later B joins. After another 2 hours joins C. After that A, B, and C together complete the task in...

Read More

By Economist
- **Dec 29**, 09:28 AM

Even if you’ve spent countless hours on GMAT prep, there’s one section you might be overlooking: your breaks!

Read More

By Kaplan
- **Dec 29**, 03:00 AM

Let’s first note the two reasons why we read in everyday life:
1) We read because we are required (for real-life purposes) to be knowledgeable about the content we are reading: studying for a history exam, delivering on a business proposal, etc.
2) We read because we...

Read More

By Kaplan
- **Dec 26**, 03:00 AM

Change careers, broaden your job options, boost your future average annual salary, and broaden your education with a business degree.
Thinking about taking the GMAT and applying to business school? Your head is probably spinning with the possibilities of what you might study, which school you...

Read More

By Miranda Menestrina
- **Dec 26**, 02:00 AM

Math
It takes computer A 6 hours and 40 minutes to finish a job. If computer B can process the same job in 10 hours, how long will it take, for both computers working together, to finish the job?
A. 6 hours and 20 minutes
B. 5 hours...

Read More

By Miranda Menestrina
- **Dec 25**, 02:00 AM

Math
A cook went to a market to buy some eggs and paid $12. But since the eggs were quite small, he talked the seller into adding two more eggs, free of charge. As the two eggs were added, the price per dozen went down by...

Read More