Practice Time and work Questions and Answers

• ‘A’ can finish a project in 40 days, whereas ‘B’ finishes 50% of the project in 12 days less than ‘A’. How many days will it take both ‘A’ ...
• Before 'A' joined the team, 'S' and 'V' were alternating days to complete a project. In the final four days, 'A', 'S', and 'V' all worked together to finis...
• Mike and Jenny alone can complete a task in 24 days and 40 days respectively. They aim to finish the work in 'd' days. What percentage increase in Jenny's ...
• Working alone, 'C' can complete a job in 30 days. 'D' takes 20% less time than 'C' to finish the same job. Calculate the percentage of work done by 'C' and...
• A can complete a piece of work in 27 days. He worked for 21 days and then B finished the remaining work in 8 days. In how many days can A and B finish the ...
• A, B, and C together can do a piece of work in 28 days, whereas C alone can do the same work in 42 days. How long will A and B take together to finish it?
• Pooja and Priya can complete an assignment in 12 days and 16 days respectively. They start the assignment together but after 3 days, Pooja leaves and Priya...
• Sam and John can complete a piece of work in 8 days and 12 days respectively. They work together but after 2 days, Sam leaves. John finishes the remaining ...
• G' can complete  (3/4) of a job in 24 days, while 'G' and 'H' together can complete the same job in 16 days. Find the time taken by 'H' to complete 25% of...
• 'Sumit' can complete (3/8) of a job in 24 days, where as 'Sumit' and 'Tarun' together can finish it in 16 days. Calculate the time 'Tarun' needs to complet...
• Peter and Rachel can complete a project together in 20 days. Peter takes four times as long as Rachel to complete the same project alone. Find the time tak...
• Neil and Oscar together can build a wall in 24 days. Neil takes five times as long as Oscar to build the wall alone. Find the time taken by Oscar to build ...
• '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...