medium · GMAT Quantitative Reasoning
Machine X can complete a task in 10 hours, and Machine Y can complete the same task in 15 hours.
If both machines work together for 4 hours and then Machine X breaks down, how many additional hours will it take Machine Y to finish the task alone?
- 9 hours
- 4 hours
- 7.5 hours
- 6 hours
- 5 hours
Sign up free to see the explanation and track your rank →
More GMAT Quantitative Reasoning practice
- Including both endpoints, how many distinct integer price points are in this range?
- What is the final price of the jacket?
- How many total ways can the traveler get from City X to City Z?
- What is the speed of the current?
- Which of the following includes the number 0?
- If the child picks one letter at random, what is the probability that it is a consonant?
- Which of the following expressions must result in a positive value?
- Which of the following must also be an even integer?
All Quantitative Reasoning questions · GMAT study guide · GMAT glossary · GMAT flashcards