Home / Arithmetic Aptitude / Time and Work :: General Questions -1

### Arithmetic Aptitude :: Time and Work

1.  A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is :
2.  A. $$\frac { 1 } { 4 }$$ B. $$\frac { 1 } { 10 }$$ C. $$\frac {7} { 15 }$$ D. $$\frac {8 } { 15 }$$

3. A can lay railway track between two given stations in 16 days and B can do the same job in 12 days. With help of C, they did the job in 4 days only. Then, C alone can do the job in:

4.  A. 9$$\frac { 1 } {5}$$days B. 9$$\frac { 2} {5}$$days C. 9$$\frac {3} {5}$$days D. 10

5. A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day?

6.  A. 12 days B. 15 days C. 16 days D. 18 days

7.  In how many days can 10 women finish a work?

I.10 men can complete the work in 6 days

II.10 men and 10 women together can complete the work in $$\left(\frac{33 } { 7}\right)$$ days

III.If 10 men work for 3 days and thereafter 10 women replace them, the remaining work in completed in 4 days

8.  A. Any two of the three B. I and II only C. II and III only D. I and III only E. None of these

9. A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:

10.  A. 20days B. 22$$\frac { 1 } { 2 }$$days C. 25 days D. 30 days

11. A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C, they completed the work in 3 days. How much is to be paid to C?

12.  A. Rs. 375 B. Rs. 400 C. Rs. 600 D. Rs. 800

13.  If 6 men and 8 boys can do a piece of work in 10 days while 26 men and 48 boys can do the same in 2 days, the time taken by 15 men and 20 boys in doing the same type of work will be:
14.  A. 4 days B. 5 days C. 6 days D. 7 days

15. A can do a piece of work in 4 hours; B and C together can do it in 3 hours, while A and C together can do it in 2 hours. How long will B alone take to do it?

16.  A. 8 hours B. 10 hours C. 12 hours D. 24 hours

17. A can do a certain work in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do it in:

18.  A. 15 days B. 20 days C. 25 days D. 30 days

19.  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?
20.  A. 23 days B. 37 days C. 37$$\frac { 1 } { 2 }$$ D. 40 days

21.  A machine P can print one lakh books in 8 hours, machine Q can print the same number of books in 10 hours while machine R can print them in 12 hours. All the machines are started at 9 A.M. while machine P is closed at 11 A.M. and the remaining two machines complete work. Approximately at what time will the work (to print one lakh books) be finished ?
22.  A. 11:30 A.M. B. 12 noon C. 12:30 P.M. D. 1:00 P.M.

23. A can finish a work in 18 days and B can do the same work in 15 days. B worked for 10 days and left the job. In how many days, A alone can finish the remaining work?

24.  A. 5 B. 5$$\frac { 1 } { 2 }$$ C. 6 D. 8

25. 4 men and 6 women can complete a work in 8 days, while 3 men and 7 women can complete it in 10 days. In how many days will 10 women complete it?

26.  A. 35 B. 40 C. 45 D. 50

27. A and B can together finish a work 30 days. They worked together for 20 days and then B left. After another 20 days, A finished the remaining work. In how many days A alone can finish the work?

28.  A. 40 B. 50 C. 54 D. 60

29. P can complete a work in 12 days working 8 hours a day. Q can complete the same work in 8 days working 10 hours a day. If both P and Q work together, working 8 hours a day, in how many days can they complete the work?

30.  A. 5$$\frac {5} {11 }$$ B. 5$$\frac {6} {11 }$$ C. 6$$\frac {5} {11 }$$ D. 6$$\frac {6} {11 }$$

31. 10 women can complete a work in 7 days and 10 children take 14 days to complete the work. How many days will 5 women and 10 children take to complete the work?

32.  A. 3 B. 5 C. 7 D. Cannot be determined E. None of these

33. X and Y can do a piece of work in 20 days and 12 days respectively. X started the work alone and then after 4 days Y joined him till the completion of the work. How long did the work last?

34.  A. 6 days B. 10 days C. 15 days D. 20 days

35. A is 30% more efficient than B. How much time will they, working together, take to complete a job which A alone could have done in 23 days?

36.  A. 11 days B. 13 days C. 20$$\frac { 3 } { 17 }$$days D. None of these

37.  Ravi and Kumar are working on an assignment. Ravi takes 6 hours to type 32 pages on a computer, while Kumar takes 5 hours to type 40 pages. How much time will they take, working together on two different computers to type an assignment of 110 pages?
38.  A. 7 hours 30 minutes B. 8 hours C. 8 hours 15 minutes D. 8 hours 25 minutes

39.  A, B and C can complete a piece of work in 24, 6 and 12 days respectively. Working together, they will complete the same work in:
40.  A. $$\frac { 1 } { 24 }$$day B. $$\frac { 7 } { 24 }$$day C. 3$$\frac { 3 } {7}$$day D. 4 days

41. Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work is:

42.  A. 15 B. 16 C. 18 D. 25

43. A takes twice as much time as B or thrice as much time as C to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in:

44.  A. 4 days B. 6 days C. 8 days D. 12 days

45.  A and B can complete a work in 15 days and 10 days respectively. They started doing the work together but after 2 days B had to leave and A alone completed the remaining work. The whole work was completed in :
46.  A. 8 days B. 10 days C. 12 days D. 15 days

47. A and B can do a piece of work in 30 days, while B and C can do the same work in 24 days and C and A in 20 days. They all work together for 10 days when B and C leave. How many days more will A take to finish the work?

48.  A. 18 days B. 24 days C. 30 days D. 36 days

49. A works twice as fast as B. If B can complete a work in 12 days independently, the number of days in which A and B can together finish the work in

50.  A. 4 days B. 6 days C. 8 days D. 18 days

51. Twenty women can do a work in sixteen days. Sixteen men can complete the same work in fifteen days. What is the ratio between the capacity of a man and a woman?

52.  A. 3 : 4 B. 4 : 3 C. 5 : 3 D. Data inadequate

53.  A and B can do a work in 8 days, B and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A and C together will do it in :
54.  A. 4 days B. 6 days C. 8 days D. 12 days

55. A can finish a work in 24 days, B in 9 days and C in 12 days. B and C start the work but are forced to leave after 3 days. The remaining work was done by A in:

56.  A. 5 days B. 6 days C. 10 days D. 10$$\frac { 1 } { 2 }$$days

57. X can do a piece of work in 40 days. He works at it for 8 days and then Y finished it in 16 days. How long will they together take to complete the work?

58.  A. 13$$\frac { 1 } { 3 }$$days B. 15 days C. 20 days D. 26 days

59. A and B can do a job together in 7 days. A is 1$$\frac {3 } { 4 }$$times as efficient as B. The same job can be done by A alone in :

60.  A. 9$$\frac { 1 } {3 }$$days B. 11 days C. 12$$\frac { 1 } { 4 }$$days D. 16$$\frac { 1 } {3 }$$days