GMAT Time and Work — practice questions
15 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice GMAT Time and Work in the app →**Time and Work — formulas used here.**
- Work done in unit time. If a worker finishes a job in $m$ days, the**Time and Work — formulas used here.**
- Work done in unit time. If a worker finishes a job in $m$ days, the**Time and Work — formulas used here.**
- Work done in unit time. If a worker finishes a job in $m$ days, the**Time and Work — formulas used here.**
- Work done in unit time. If a worker finishes a job in $m$ days, the**Time and Work — formulas used here.**
- Work done in unit time. If a worker finishes a job in $m$ days, the**Time and Work — formulas used here.**
- Work done in unit time. If a worker finishes a job in $m$ days, theA can do a job in 8 days, B in 12 days. How long do A and B take working together?A finishes a job in 6 days, B in 4 days. Using the LCM trick (work = 12 units), what is B's daily rate?A, B, C complete jobs alone in 10, 12, 15 days. Working together, they finish in:Two pipes A and B fill a tank in 4 and 6 hours. A drain C empties it in 12 hours. With all three open, how lonA is twice as efficient as B. B alone finishes a job in 18 days. How long do A and B together take?20 workers can complete a project in 25 days. How long would 25 workers take to complete the same project?A pipe fills a tank in 4 hours. Due to a leak, it now takes 6 hours. The leak alone would empty a full tank inA and B together can do a job in 12 days. After working together for 4 days, A leaves. B finishes the remaininA is 50% more efficient than B. If B takes 30 days to complete a task alone, how many days does A take alone?