Time and work MCQ

Below Time and work quiz are Multiple Choice Questions (MCQs) type Quiz. These Time and work MCQ Questions helps you to refresh your Time and work, you can see the correct option by clicking on it. .
  • 1. P and Q do a work in 21 days. Q and R do that work in 35 days, whereas R and P complete the same work in 28 days. In how many days P alone can complete the work?

    • 840/23
    • 840/21
    • 830/19
    • 810/18
    • None of these
  • 2. A can build a wall in 16 days while B can destroy it in 8 days. A worked for 5 days. Then B joined with A for the next 2 days. Find in how many days could A build the remaining wall ?

    • 12 days
    • 14 days
    • 13 days
    • 16 days
  • 3. K can build a wall in 30 days. L can demolish that wall in 60 days. If K and L work on alternate days, when will the wall be completed ?

    • 120 days
    • 119 days
    • 118 days
    • 117 days
  • 4. A, B and C can do a job working alone in 12, 16 and 24 days respectively. In how many days they can do the job if they worked together?

    • 16/3
    • 15/4
    • 17/3
    • 19/4
  • 5. If 18 men can cut a field in 35 days, then in how many days can 21 men cut the same field?  

    • 27
    • 28
    • 30
    • 32
  • 6. A piece of work was finished by A, B and C together. A and B together finished 60% of the work and B and C together finished 70% of the work. Who among the three is most efficient?

    • A
    • B
    • C
    • None
  • 7. Mehdi can complete a work in 25 hours. If he is joined by Jahnavi who is 50% more efficient, in what time will they together finish the work?

    • 12 hours
    • 10 hours
    • 3 hours
    • 9 hours
  • 8. Mehdi can complete a work in 25 hours. If he is joined by Jahnavi who is 50% more efficient, in what time will they together finish the work?

    • 12 hours
    • 10 hours
    • 3 hours
    • 9 hours
  • 9. If two flood gates A and B function simultaneously, the reservoir will be filled iu 6 hours. Gate A fills the reservoir 5 hours faster than gate B. How many hours does the faster flood gate take to fill the reservoir?

    • 7 hrs
    • 13 hrs
    • 5 hrs
    • 10 hrs
  • 10. Raja and Kundan together can build a wall in 20 days, Kundan and Mahesh build the same wall in 30 days and Mahesh and Raja can build the same wall in 24 days. In how many days can all the three complete the same wall while working together?

    • 18
    • 16
    • 20
    • 14
  • 11. A can paint a house in 45 days and B can do it in 15 days. Along with C, they did the job in 5 days only. Then, C alone can do the job in how many days?

    • 12
    • 9
    • 15
    • 8
  • 12. A can paint a house in 25 days and B can do it in 10 days. Along with C, they did the job in 6.25 days only. Then in how many days, C alone can do the job?

    • 50
    • 40
    • 30
    • 60
  • 13. A can do a work in 12 days and B in 24 days. If they work on it together for 4 days, then what fraction of work is left?

    • 1/3
    • 1/2
    • 1/4
    • 1/5
  • 14. 50 men can complete a work in 28 days. They started the work together, but at the end of each 10th day, 10 men left the job. The work was completed in how many days?

    • 36
    • 38
    • 40
    • 45
  • 15. Manish, Mukesh and Sachin are Accountants. Mukesh can filea return in 5 hours and Sachin in 4 hours alone. All three together can do it in 2 hours. In what time (in hrs) will Manish do the work?

    • 15
    • 20
    • 17
    • 10
  • 16. Manish, Mukesh and Sachin are Accountants. Mukesh can filea return in 5 hours and Sachin in 4 hours alone. All three together can do it in 2 hours. In what time (in hrs) will Manish do the work?

    • 15
    • 20
    • 17
    • 10
  • 17. A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?

    • 75 days
    • 37.5 days
    • 17.5 days
    • 35 days
  • 18. If 10 people can do a job in 20 days,then 20 people with twice the efficiency can do the same job in

    • 5 days
    • 10 days
    • 20 days
    • 40 days
  • 19. Painter 'A' can paint a house in 10 days and 'B' can do it in 20 days. With help of 'C', they did the job in 5 days only. Then, 'C' alone can do the job in:

    • 20 days
    • 10 days
    • 40 days
    • 50 days
  • 20. A can do 75% of a job in 9 days and B can do half of the job in 8 days. If they work on it together, then in how many days can they do half of the job?

    • 40/7
    • 24/7
    • 7/2
    • 9/2
  • 21. A and B together do a job in 12 days and A could do the job in 20 days if he worked alone. How many days would B take to do the job if he worked alone?

    • 30
    • 25
    • 24
    • 15
  • 22. Rohan and Mohit together can build a wall in 8 days. Mohit and Vikas build the same wall in 10 days and Vikas and Rohan can build the same wall in 12days. In how many days can all the three complete the same wall while working together?

    • 240/37
    • 120/37
    • 150/37
    • 180/37
  • 23. Working alone A can do the task in 27 hours and B can do it in 54 hours. Find C's share (in Rs) if A, B and C get paid Rs 4,320 for completing a task in 12 hours on which they worked together.

    • 1440
    • 960
    • 1920
    • 1280
  • 24. Working alone A can do the task in 27 hours and B can do it in 54 hours. Find C's share (in Rs) if A, B and C get paid Rs 4,320 for completing a task in 12 hours on which they worked together.

    • 1440
    • 960
    • 1920
    • 1280
  • 25. X, Y and Z can do a piece of work in 30,40 and 50 days respectively. All three of them began the work together but Y left 4 days before completion of the work. In how many days was the work completed?

    • 660/47
    • 640/47
    • 680/47
    • 665/47
  • 26. X, Y and Z can do a piece of work in 30,40 and 50 days respectively. All three of them began the work together but Y left 4 days before completion of the work. In how many days was the work completed?

    • 660/47
    • 640/47
    • 680/47
    • 665/47
  • 27. Ram and Hari can cut 12 kgs nuts in 2 days. After 5 days, Hari left the work. Ram took 8 more days to cut the rest of the nuts. If total of 58 kgs of nuts were cut, the time taken by Hari to cut 10 kg of nuts is

    • 1 day
    • 2 days
    • 3 days
    • 4 days
  • 28. A can do as much work in 4 days as B can do in 5, and B can do as much work in 6 days as C in 7. In what time will C do a piece of work which A can do in a week ?

    • 10 5/24 days
    • 4 4/5 days
    • 6 8/15 days
    • 12 6/19 days
  • 29. Robin can do a work alone in 9 days. Amit can do the same work alone in 6 days. Both of them finish the work together and they get a total Rs 2500. What isthe share (in Rs) of Robin?

    • 1700
    • 1200
    • 1500
    • 1000
  • 30. A and B have to type a book together containing 120 pages. A takes 9 hrs to type 36 pages and B takes 5 hrs to type 40 pages. A typed first 60 pages alone and the last 60 pages were typed by A and B together. How much time (in hours) will be taken to type the complete book?

    • 24
    • 20
    • 12
    • 15
  • 31. Prabhat has done 1/2 of a job in 12 days. Santosh completes the rest of the job in 6 days. In how many days can they together do the job?

    • 12 days
    • 4 days
    • 8 days
    • 16 days
  • 32. A can do a work in 21 days and B in 42 days. If they work on it together for 7 days, then what fraction of work is left?

    • 1/3
    • 1/4
    • 2/3
    • 1/2
  • 33. Azhar is 4 times as good a workman as Balaraj and therefore is able to finish a job in 45 days less than Balaraj. Working together, they can do it in:

    • 6 days
    • 18 days
    • 24 days
    • 12 days
  • 34. M is thrice as good as workman as N and together they finish a piece of work in 30 days. In how many days will M alone finish the work?

    • 50
    • 40
    • 60
    • 45
  • 35. A can do a certain job in 12 days. B is 60% more efficient than A. Then B can do the same piece of work in

    • 8 days
    • 7.5 days
    • 6.4 days
    • 5.5 days
  • 36. In a computer game, there are builders and destroyers. Together there are 20 of them. Some of them try to build a wall around a castle while the rest try to demolish it. Each of the builders can build the wall alone in 15 hours while any of the destroyers can demolish it in 10 hours. If all 20 builders and destroyers are made active when there is no wall and the wall gets built in 3 hours, how many of them are destroyers?

    • 5
    • 7
    • 6
    • 8
  • 37. A, B and C can do a job working alone in 50, 75 and 20 days respectively. They all work together for 4 days, then C quits. How many days will A and B take to finish the rest of the job?

    • 20
    • 30
    • 18
    • 24
  • 38. Ranjith can complete a task in 25 days while Anji can finish it in 20 days. They work together on the task for 5 days and then Ranjith leaves. In how many days will Anji finish the remaining work?

    • 15 days
    • 10 days
    • 11 days
    • 9 days
  • 39. A  field  can  be  reaped  by  12  men  or  18  women  in  14  days.  In  how  many  days  can  8  men  and  16 women reap it?

    • 26 days
    • 24 days
    • 9 days
    • 8 days
  • 40. A does 60% of a work in 15 days. He then calls B, and they together finish the remaining work in 5 days. How long B alone would take to do the whole work?

    • 25 days
    • 20 days
    • 80 days
    • 24 days
  • 41. A and B can do a piece of work in 24 and 30 daysrespectively. Both started the work and worked for 6 days.Then B leaves the work and C joins and the remaining workis completed by A and C together in 11 days. Find the days in which C alone can do the work

    • 80
    • 100
    • 120
    • 130
  • 42. A and B can do a piece of work in 24 and 30 daysrespectively. Both started the work and worked for 6 days.Then B leaves the work and C joins and the remaining workis completed by A and C together in 11 days. Find the days in which C alone can do the work

    • 80
    • 100
    • 120
    • 130
  • 43. A can do a piece of work in 6 days working 8 hours a day while B can do the same work in 4 days working 10 hours a day. If the work has to be completed in 5 days, so how many hours do they need to work together in a day?

    • 59/11
    • 48/11
    • 70/11
    • 65/11
  • 44. Amit can complete a work in 25 days and Punit can complete the same work in 20 days. Punit alone worked at it for 10 days and then left the work. In how many days will Amit alone complete the remaining work?

    • 10.5
    • 11.5
    • 12.5
    • 13.5
  • 45. S, T and U together can complete a work in 30 days. If the ratio of efficiency of S, T and U is 20 : 15 : 12 respectively, then in how many days U alone can complete the same work?

    • 195/2
    • 235/2
    • 225/2
    • 215/2
  • 46. Sister can bake 50 cakes in 25 hours, Sister and Mummy together can bake 75 cakes in 15 hours. How many cakes Mummy can bake in 15 hours?

    • 25
    • 45
    • 20
    • 10
  • 47. P and Q can do a project in 60 and 30 days respectively. In how many days can they complete 90% of the project if they work together?

    • 9 days
    • 27 days
    • 36 days
    • 18 days
  • 48. A can finish a work in 7 days . B can finish the same work in 9 days . The days required to finish the work by both of them together.

    • 31/16
    • 47/16
    • 63/16
    • 79/16
  • 49. Chutki can bake 30 cakes in 15 hours. Chutki and Badki together can bake 90 cakes in 30 hours. How many cakes Badki can bake in 10 hours?

    • 75
    • 20
    • 10
    • 60
  • 50. Sandy and Mandy do (8/13)th part of a work and the rest of the work was completed by Andy. If Sandy, Mandy and Andy take the same work for Rs. 2600, then what is the share (in Rs) of Andy?

    • 1600
    • 1400
    • 800
    • 1000
  • 51. Manish can complete a work in 21 days and Karan can complete the same work in 28 days. If both together work for 7 days, then what fraction of total work is left?  

    • 3/5
    • 2/3
    • 7/12
    • 5/12
  • 52. 45 men or 60 boys can do a piece of work in 20 days. How many days will 15 men and 20 boys take to complete the work?

    • 23
    • 45
    • 30
    • 25
  • 53. Murad can do a piece of work in 33 hours. If he is joined by Joel who is 100% more efficient, in what time will they together finish the work?

    • 4 hours
    • 6 hours
    • 2 hours
    • 11 hours
  • 54. Amar can complete a work in 30 days and Raman can complete the same work in 15 days. If both of them work together, then in 4 days what percent of the total work will be completed?

    • 15
    • 37
    • 40
    • 45
  • 55. 2 men or 3 women can complete a job in 96 days. Then 6 men and 7 women will complete the same job in how many days?

    • 18
    • 27
    • 20
    • 24
  • 56. 3 men or 4 women can complete a job in 120 days. 12 men and 16 women will complete the same job in how many days?

    • 12
    • 14
    • 15
    • 18
  • 57. A and B together can do a piece of work in 9 days. If A does thrice the work of B in a given time, the time A alone will take to finish the work is

    • 4 days
    • 6 days
    • 8 days
    • 12 days
  • 58. Murad can do a piece of work in 33 hours. If he is joined by Joel who is 100% more efficient, in what time will they together finish the work?

    • 4 hours
    • 6 hours
    • 2 hours
    • 11 hours
  • 59. A, B and C together can complete a work in 25 days. If the ratio of efficiency of A, B and C is 15 : 10 : 6 respectively, then in how many days C alone can complete the same work?

    • 727/6
    • 725/6
    • 775/6
    • 745/6
  • 60. A can do a work in 15 days and B in 9 days. If they work on it together for 5 days, then what fraction of work is left?

    • 1/6
    • 3/7
    • 1/3
    • 1/9