Work and Time (SSC) (Part-4)

Total Questions: 50

21. A and B can finish a work in 6 days and 4 days, respectively. A alone worked on it for 2 days. Thereafter, B joined him. How much total time was taken by them to finish the work ? [SSC CHSL 07/08/2023 (2nd Shift)]

Correct Answer: (a)
Solution:

22. A and B together can complete a piece of work in 15 days and B alone can complete it in 21 days. In how many days can A complete it alone ? [SSC CHSL 08/08/2023 (2nd Shift)]

Correct Answer: (b)
Solution:

23. Three people A, B and C worked together and finished a work in 9 days. If A alone can finish the same work in 18 days, B alone in 30 days, then the number of days C alone will take is: [SSC CHSL 09/08/2023 (4th Shift)]

Correct Answer: (b) 45 days
Solution:

24. X, Y and Z can complete a piece of work in 20, 12 and 28 days, respectively. If all work together, the approximate number of days to complete the work will be: [SSC CHSL 10/08/2023 (2nd Shift)]

Correct Answer: (a) 6
Solution:


25. George can do 35% of the total work in 6 days, Jim and George together completed a piece of work in 12 days. In how many days could Jim, working alone, complete the entire task ? [SSC CHSL 10/08/2023 (3rd Shift)]

Correct Answer: (b) 40
Solution:

26. 30 women working 5 hours a day can complete a work in 18 days. In how many days will 21 women working 8 hours a day complete the same work? [SSC CHSL 11/08/2023 (1st Shift)]

Correct Answer: (c)
Solution:

27. If 18 mechanics can repair 90 cars in 10 days, how many mechanics will be required to repair 150 cars in 12 days ? [SSC CHSL 11/08/2023 (4th Shift)]

Correct Answer: (a) 25
Solution:

28. A can finish a work in 25 days, and B can do the same work in 15 days. B worked for 10 days and left the job. A alone can finish the remaining work in how many days ? [SSC CHSL 14/08/2023 (2nd Shift)]

Correct Answer: (c)
Solution:

29. Jason can do a piece of work alone in 23.4 days, while Rafique can do the same piece of work alone in 39 days. In how many days can the duo complete the same work if they work together? [SSC CHSL 14/08/2023 (3rd Shift)]

Correct Answer: (b) 14.625
Solution:

30. Ram can complete a piece of work in 18 days, Reena can complete the same work in 12 days, and with the help of Shyam, they finish the same work in six days. In how many days can Shyam alone complete the same work ? [SSC CHSL 14/08/2023 (4th Shift)]

Correct Answer: (b) 36
Solution: