hard · GMAT Quant
Crew A can finish a renovation in 10 days working alone. Crew B can finish it in 15 days working alone. Crew A works alone for 4 days, and then both crews work together until the job is done.
How many days do the two crews work together?
- 2.4
- 3
- 3.6
- 4
- 6
Sign up free to see the explanation and track your rank →
More GMAT Quant 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?