Practice Time and work Questions and Answers

• 'A' and 'D' together can finish a project in 40 days. If 'D' alone can complete 25% of the project in 15 days, then find out how long it takes for 'A' alon...
• 'A' and 'B' can together complete a job in 15 days. If 'B' alone can finish 50% of the job in 20 days, how long would it take 'A' alone to complete the ent...
• ‘A’ can complete a work in 20 days and is 20% more efficient than ‘B’. ‘A’ and ‘B’ start the work together, but ‘A’ leaves after 10 day...
• ‘A’ can complete a work in 15 days and is 50% more efficient than ‘B’. ‘A’ and ‘B’ start working together and ‘A’ leaves after 8 days. ...
• ‘A’ can complete a work in 18 days and is 10% more efficient than ‘B’. ‘A’ and ‘B’ start the work together, but ‘A’ leaves after 15 day...
• 'x' men can complete a work in 60 days. If there had been 20 more men, the work would have been completed in 30 days. Find the value of 'x'.
• A robot can finish a task as quickly as two humans, 'E' and 'F', together. If human 'E' can finish the task in 8 hours and human 'F' in 24 hours, how long ...
• 16 men can complete a work in 10 days. 10 men started the same work and left after working for ‘y’ days. The remaining work is completed by 6 men in 15...
• A takes 24 hours more than B to complete the work, and 32 hours more than C to complete the same work. The combined time taken by A and B to finish the wor...
• 25 men can complete a piece of work in 13 days. One man starts the work and after every day one more man joins the work and this continues till the work is...
• Anil alone can finish some work in 50 days. Anil and Aman completed the work together and earned Rs. 9,000 as wage. If Aman's wage share is Rs. 3,600, then...
• Vikram alone can finish some work in 20 days. Vikram and Varun completed the work together and earned Rs. 8,000 as wage. If Varun's wage share is Rs. 3,200...
• 'A' can do 50% of work in 10 days, whereas 'B' can do 25% of the same work in 8 days. 'A' and 'B' started the work, but 'B' left the work 'n' days before c...
• A builder recruited 60 workers to do a task in 90 days. It was discovered that only 1/3 of the task was achieved after 60 days. Determine how many addition...
• A contractor hired 50 workers to complete a work in 80 days. After 50 days, it was found that only 1/4th of the work was completed. Find the number of extr...
• 'A' and 'B' alone can complete a work in 14 days and 21 days, respectively. Find the time taken by them to complete the work if they work on alternate days...
• 'A' and 'B' alone can complete a work in 9 days and 18 days, respectively. Find the time taken by them to complete the work if they work on alternate days ...
• A and B can do a piece of work in 30 days and 40 days, respectively. They began the work together but after a certain time, A leaves off and B completed th...
• 'K' and 'L' together can complete a work in 24 days. They started working together but after 16 days, 'L' left and remaining work was completed by 'K' alon...
• A person travelled for the first 150 km at a certain speed in 6 hours. After that, the speed of the person decreased by 6 km/h. If the person took a total ...
• 16 men or 24 women can complete a piece of work in 36 days. A man and a woman together complete the work and receive a total wage of Rs. 9,600. Find the di...
• 20 men or 40 women can complete a piece of work in 24 days. A man and a woman together complete the work and receive a total wage of Rs. 12,000. Find the d...
• 10 men or 50 women can complete a piece of work in 40 days. A man and a woman together complete the work and receive a total wage of Rs. 6,000. Find the di...
• 30 men can complete a work in 12 days. After 9 days, 15 more men joined them. How many days will they now take to complete the remaining work?
• A can finish a work in 25 days and B can complete the same work in 10 days. B worked for 5 days and left the job. In how many days can A alone finish the r...
• 15 men can do a work in 30 days. After 18 days of work, 5 more men were engaged to finish the work. The number of days required to complete the remaining w...
• Rahul can complete a work in 12 days and Ayush in 15 days. If they work together for 3 days, then the fraction of work that will be left is:
• A man takes 200 days to finish a work alone. If he started working alone and joined by one more man having same efficiency as of him every day from 2nd day...
• . If 3 goats or 5 sheep can graze a field in 56 days, then in how many days can 6 goats and 10 sheep graze the same field?
• Mira is 40% more efficient than Priya, and Neha is 10% more efficient than Mira. If Neha and Mira together can do a piece of work in 15 days, in how many d...
• "Amit" and "Bhanu" have respective completion times of 20 and 30 days for a task. They began working together on the project, but after a few days, "Amit" ...
• 'Q' is 20% less efficient than 'P' and 'R' is 60% more efficient than 'P'. If 'Q' takes 20 more days than 'R' to complete the same work, then find the time...
• 'C' can complete a work in 18 days whereas 'D' can do the same work in 30 days.They started working together but 'C' worked with 60% of his efficiency whil...
• Anil, Anshika and Anamika can do a certain piece of work in 64 days, 72 days and 96 days, respectively. All of them started working together but after ___ ...
• 15 men can do a piece of work in 10 days working 12 hours a day. How many men can do double the work in 25 days working 8 hours a day?
• Sufficient food-supply was arranged to last for 30 days for 250 soldiers. If 50 soldiers did not attend the camp, for how many extra days will the food-sup...
• P, Q and R take 18, 15 and 10 days respectively to complete a job. Compare their efficiencies as a ratio.
• With P starting the work, working on alternate days, P and Q can finish a work in 17 days. If Q works on the first day and Q and P work alternately, the wo...
• P, Q and R can do some work in 11 days, 20 days and 55 days respectively. In how many days can the work be done, if P gets the assistance of Q and R on alt...
• 30 typists working 7 hours per day can complete a typing job in 15 days. ____ typists working _____ hours per day can complete (2/3)rd part of the work in ...