Home / Arithmetic Aptitude / Time and Work :: Data Sufficiency 5

Arithmetic Aptitude :: Time and Work

  1. 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 ?

  2. A.
    11:30 A.M.
    B.
    12 noon
    C.
    12:30 P.M.
    D.
    1:00 P.M.

    View Answer

    Workspace

    Discuss Discuss in Forum


  3. 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?

  4. A.
    23 days
    B.
    37 days
    C.
    371-div-1by2
    D.
    40 days

    View Answer

    Workspace

    Discuss Discuss in Forum


  5. 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:

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

    View Answer

    Workspace

    Discuss Discuss in Forum


  7. 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?

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

    View Answer

    Workspace

    Discuss Discuss in Forum


  9. 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:

  10. A.
    4 days
    B.
    5 days
    C.
    6 days
    D.
    7 days

    View Answer

    Workspace

    Discuss Discuss in Forum


  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

    View Answer

    Workspace

    Discuss Discuss in Forum


  13. 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:

  14. A.
    20 days
    B.
    22 1/2 days
    C.
    25 days
    D.
    30 days

    View Answer

    Workspace

    Discuss Discuss in Forum


  15. 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?

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

    View Answer

    Workspace

    Discuss Discuss in Forum


  17. 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:

  18. A.
    9 1/5 days
    B.
    9 2/5 days
    C.
    9 3/5 days
    D.
    10

    View Answer

    Workspace

    Discuss Discuss in Forum


  19. 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 :

  20. A.
    1/4
    B.
    1/10
    C.
    7/15
    D.
    8/15

    View Answer

    Workspace

    Discuss Discuss in Forum