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GMAT Question of the Day
October 07, 2009
Every weekday, GMAT Hacks publishes a realistic GMAT practice question. In general, you'll see Quant problems on Monday, Wednesday, and Friday, and Verbal questions on Tuesday and Thursday. You'll always be able to find them at www.gmatdaily.com.
Give today's question a try, and check your answer. When you're done, be sure to subscribe so that you can keep practicing every day!
Today's Practice GMAT Question:
| Working independently at their respective constant rates, machines X and Y took 15 minutes to fill an order. What fraction of the order was filled by machine X? | |
| (1) | Working alone at its constant rate, machine X would have taken 60 minutes to fill the order. |
| (2) | Working alone at its constant rate, machine Y would have taken 20 minutes to fill the order. |
| (A) | Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. |
| (B) | Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. |
| (C) | BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient. |
| (D) | EACH statement ALONE is sufficient. |
| (E) | Statements (1) and (2) TOGETHER are NOT sufficient. |
Click to show answer (opens in new window)
Need more work in this area? Check out the Rates, Ratios, and Percents set of (100) practice problems.There is also a full chapter covering Combined Rates in Total GMAT Math. It includes additional practice problems, as well.
If you don't already subscribe to the GMAT Question of the Day, start now--it's easy! A new question is published every weekday. You can sign up for all the questions, or just Verbal or Quantitative questions. Click here to subscribe!
About the author: Jeff Sackmann is a GMAT tutor based in New York City. He has created many resources for GMAT preparation, including the popular Total GMAT Math and Total GMAT Verbal, as well as 1,800 practice GMAT math questions.
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