CAT Time and Work previous year questions

20 Time and Work questions from CAT 2021–2025 (Quant), each with its answer and a step-by-step solution.

• Q18Arun, Varun and Tarun, if working alone, can complete a task in 24, 21, and 15 days, respectively. They charge ₹2160,…CAT 2025 Slot 1 · Quant · Time and Work
• Q12Ankita is twice as efficient as Bipin, while Bipin is twice as efficient as Chandan. All three of them start together…CAT 2025 Slot 2 · Quant · Time and Work
• Q10Teams A, B, and C consist of five, eight, and ten members, respectively, such that every member within a team is…CAT 2025 Slot 3 · Quant · Time and Work
• Q19The rate of water flow through three pipes A, B and C are in the ratio 4 : 9 : 36. An empty tank can be filled up…CAT 2025 Slot 3 · Quant · Time and Work
• Q5Renu would take 15 days working 4 hours per day to complete a certain task whereas Seema would take 8 days working 5…CAT 2024 Slot 1 · Quant · Time and Work
• Q6Amal and Vimal together can complete a task in 150 days, while Vimal and Sunil together can complete the same task in…CAT 2024 Slot 2 · Quant · Time and Work
• Q9Sam can complete a job in 20 days when working alone. Mohit is twice as fast as Sam and thrice as fast as Ayna in the…CAT 2024 Slot 3 · Quant · Time and Work
• Q15The amount of job that Amal, Sunil and Kamal can individually do in a day, are in harmonic progression. Kamal takes…CAT 2023 Slot 1 · Quant · Time and Work
• Q10Pipes A and C are fill pipes while Pipe B is a drain pipe of a tank. Pipe B empties the full tank in one hour less…CAT 2023 Slot 2 · Quant · Time and Work
• Q8Rahul, Rakshita and Gurmeet, working together, would have taken more than 7 days to finish a job. On the other hand,…CAT 2023 Slot 3 · Quant · Time and Work
• Q16Gautam and Suhani, working together, can finish a job in 20 days. If Gautam does only 60% of his usual work on a day,…CAT 2023 Slot 3 · Quant · Time and Work
• Q2Working alone, the times taken by Anu, Tanu and Manu to complete any job are in the ratio 5:8:10 . They accept a job…CAT 2022 Slot 2 · Quant · Time and Work
• Q3Bob can finish a job in 40 days, if he works alone. Alex is twice as fast as Bob and thrice as fast as Cole in the…CAT 2022 Slot 3 · Quant · Time and Work
• Q16A group of N people worked on a project. They finished 35% of the project by working 7 hours a day for 10 days.…CAT 2022 Slot 3 · Quant · Time and Work
• Q17Anu, Vinu and Manu can complete a work alone in 15 days, 12 days and 20 days, respectively. Vinu works everyday. Anu…CAT 2021 Slot 1 · Quant · Time and Work
• Q19Amar, Akbar and Anthony are working on a project. Working together Amar and Akbar can complete the project in 1 year,…CAT 2021 Slot 1 · Quant · Time and Work
• Q6Anil can paint a house in 60 days while Bimal can paint it in 84 days. Anil starts painting and after 10 days, Bimal…CAT 2021 Slot 2 · Quant · Time and Work
• Q21Two pipes A and B are attached to an empty water tank. Pipe A fills the tank while pipe B drains it. If pipe A is…CAT 2021 Slot 2 · Quant · Time and Work
• Q2Anil can paint a house in 12 days while Barun can paint it in 16 days. Anil, Barun, and Chandu undertake to paint the…CAT 2021 Slot 3 · Quant · Time and Work
• Q9One day, Rahul started a work at 9 AM and Gautam joined him two hours later. They then worked together and completed…CAT 2021 Slot 3 · Quant · Time and Work