Practice Time and work Questions and Answers

• Naina and Kalpana working together can do a piece of work in 10 days, whereas Naina alone can do it in 12 days. In how many days can Kalpana do it alone?
• Person A can complete a work in 90 minutes while Person B takes 54 minutes to complete the same work. How much time will both take together to complete the...
• 12 children and 18 men complete an artwork in 9 days. Each child takes twice as long as a man to finish the artwork. How many days will it take for 18 men ...
• Sachin can do a work in 80 days. He works on it for 10 days and then Saurav alone finishes the remaining work in 42 days. In how many days can Sachin and S...
• Aamir is twice as efficient a worker as Bender and together they can complete a work in 42 days. In how many days will Aamir alone complete the same work?
• "Bhanu" is 37.5% more productive than "Anurag," the two of them can finish the entire task in 40 days. Determine how long it took "Anurag" by himself to fi...
• Abhay and Bhuvan working together can complete a sales target in 24 days. Bhuvan and Chikku working together can finish the same sales target in 32 days. A...
• A can complete a piece of work in 24 days. He worked for 21 days and then B finished the remaining work in 6 days. In how many days can A and B finish the ...
• 'Amit' can finish a __ percentage of work in 4 days on his own. 'Bishnu' requires 4 days less than 'Amit' to complete the same task individually. Consequen...
• 24 delivery boys can complete a delivery in 15 days. If 12 boys start the same work, and after 12 days, 'd' more boys join the work, completing the remaini...
• 105 people could complete a work in 36 days. But after they worked together for 7 days their employer wanted the work should be completed in a total of 28 ...
• A can do a job alone in 66 days, B can do it alone in 55 days, while A, B, and C working together can complete the job in 11 days. In how many days can C d...
• A 480-liter blend contains soap and water in a 5:3 ratio. Adding 60 liters of soap and (6u + 30) liters of water changes the ratio to 6:5. Find the ratio o...
• 40 tailors can stitch a batch of dresses in 30 days. If 20 tailors started the job and after 15 days ‘u’ more tailors joined them such that the remaini...
• 36 women can complete a task in 20 days. If 18 women start the task and after 15 days ‘y’ more women join, ensuring the remaining work is completed in ...
• 50 children can decorate a hall in 25 days. If 25 children began decorating and after 10 days ‘z’ additional children joined, completing the decoration...
• ‘D’ and ‘E’ together can finish a task in 40 days, while ‘E’ and ‘F’ together can finish the same task in 30 days. ‘D’ and ‘E’ toge...
• ‘X’ and ‘Y’ together can finish an assignment in 30 days while ‘Y’ and ‘Z’ together can finish the same assignment in 45 days. ‘X’ and ...
• Rahul, Rohit, and Raj alone can complete a project in 40, 80, and 120 days respectively. All of them started working together, but after 10 days, Rahul lef...
• 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...
• 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...
• '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...