Work and Time (SSC) (Part-5)

Total Questions: 50

41. Working for 10 hours per day, 6 men can build a wall in a certain number of days. By working for how many hours/minutes per day can 12 men build the wall in the same days? [SSC CGL Tier II (07/03/2023)]

Correct Answer: (b) 5 hours
Solution:

42. A takes 4 times as much times as B or 5 times as much time as C to finish a piece of work. Working together, they can finish the work in 4 days. B can do the work alone in: [SSC CGL 01/12/2022 (3rd Shift)]

Correct Answer: (a) 10 days
Solution:

43. A takes twice as much time as B and thrice as much time as C to finalise a task. Working together, they can complete the task in 8 days. The time (in days) taken by A, B and C, respectively, to complete the task is: [SSC CGL 02/12/2022 (2nd Shift)]

Correct Answer: (d) 48, 24, 16
Solution:

44. Ruchi, Khushi and Teju can do a piece of work in 30, 40 and 60 days respectively. In how many days can Ruchi do the work, if she is assisted by both Khushi and Teju on every third day? [SSC CGL 03/12/2022 (1st Shift)]

 

Correct Answer: (b)
Solution:

45. A contractor decided to complete a work in 80 days and employed 60 men at the beginning and 20 men additionally after 20 days and got the work completed as per schedule. If he had not employed the additional men, how many extra days would he have needed to complete the work (round off to the nearest integer)? [SSC CGL 05/12/2022 (2nd Shift)]

Correct Answer: (b) 20
Solution:


46. A group of men decided to do a job in 6 days, but 18 men dropped out every day. If the job was completed in 8 days, then how many men initially decided to do the job. [SSC CGL 06/12/2022 (2nd Shift)]

Correct Answer: (b) 252
Solution:

47. In a partnership firm two partners, Vijay and Praveen are working on an assignment. It will take 12 weeks for Vijay to complete the entire assignment alone, while Praveen will take 8 weeks to complete it alone. Due to work pressure, they decided to work on that assignment on the alternate week basis. In the first week Praveen will work and in the second week Vijay will work and so on. In how many weeks the work will be completed if they work on an alternate week basis? [SSC CGL 07/12/2022 (2nd Shift)]

Correct Answer: (c) 9.5
Solution:

48. 20 men can finish a work in 220 days, but at the end of 90 days, 20 additional men are employed. In how many more days will the work be completed? [SSC CGL 09/12/2022 (2nd Shift)]

Correct Answer: (c) 65
Solution:

49. Abha and Anuj working together completed a job in 40/9 days. If Abha had worked twice as efficiently as she actually did and Anuj had worked 1/3 of his actual efficiency, then the work would have been completed in 60/17 days. Find the time Abha would take to complete the work alone. [SSC CGL 09/12/2022 (3rd Shift)]

Correct Answer: (b) 8 days
Solution:

50. Two persons A and B working separately can sanitise a building in 6 and 10 hours, respectively. They work in stretches of one hour alternately. If A begins at 8 a.m., then when will the work be finished ? [SSC CGL 13/12/2022 (3rd Shift)]

Correct Answer: (b)
Solution: