Practice Time and work Questions and Answers

• Mohan, Sohan, and Rohan alone can finish a piece of work in 50, 100, and 150 days respectively. They start the work together, but Mohan leaves after 8 days...
• The ratio of efficiencies of Ajay and Bijay is 7:8, respectively. Ajay and Bijay together can complete the total work in 24 days. In how many days will Bij...
• 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...
• Amit manages to reach 25% of a sales goal in 6 days, whereas Geeta can achieve 40% of the same goal within the same timeframe. How long would it take for b...
• Lucas, Maya, and Riley can build a wall in 5, 10, and 15 days respectively. If they start the job together and Lucas leaves 3 days before the job is done, ...
• Carol, Bruce, and Peter can decorate a venue in 7, 14, and 21 days respectively. If they start working together, but Carol leaves 3 days before completion,...
• Rohan can finish a task alone in 24 days. Shreya can do 50% of the same task alone in 12 days. If Shreya and Tanya work together, they can complete 60% of ...
• 20 women can complete a task in 10 days by working 6 hours per day. How many women are required to complete the task in 5 days by working 8 hours per day?
• 25 tailors can sew 200 dresses in 40 days by working 5 hours per day. How many tailors are needed to sew the same number of dresses in 25 days by working 8...
• 10 masons can build a wall in 15 days by working 8 hours per day. How many masons are required to build the wall in 10 days by working 12 hours per day?
• 'Ajeet' has an efficiency that is 40% lower than 'Chirag's, where as 'Bittu' is 20% more efficient than 'Chirag'. The time difference between 'Bittu' and '...
• 30 men can complete a task in 160 days. 12 men start the work and manage to do half of it. Then, 18 more men are added to the team to help finish the work....
• 'G', 'H', and 'I', working together, can finish a task in 6 days. 'G' and 'H' can do it in 7.2 days, and 'H' and 'I' in 9 days. How long would it take for ...
• 'P', 'Q', and 'R', working in unison, can complete an assignment in 10 days. 'P' and 'Q' finish it in 12 days, while 'Q' and 'R' complete it in 15 days. Ca...
• In a retreat, there is sufficient food for 300 people for the duration of the retreat. After 8 days, 100 people leave the retreat. Then, after another 3 da...
• ‘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?
• 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...
• '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...