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Arithmetic Aptitude :: Time and Work

  1. A and B together can do a piece of work in 30 days. A having worked for 16 days, B finishes the remaining work alone in 44 days. In how many days shall B finish the whole work alone?

  2. A.
    30 days
    B.
    40 days
    C.
    60 days
    D.
    70 days

  3. A and B can do a job together in 7 days. A is 11-div-3by4times as efficient as B. The same job can be done by A alone in :

  4. A.
    9 1/3 days
    B.
    11 days
    C.
    12 1/4 days
    D.
    16 1/3 days

  5. 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?

  6. A.
    13 1/3 days
    B.
    15 days
    C.
    20 days
    D.
    26 days

  7. 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:

  8. A.
    5 days
    B.
    6 days
    C.
    10 days
    D.
    10 1/2 days

  9. 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 :

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

  11. 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?

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

  13. 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 :

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

  15. 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?

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

  17. 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 :

  18. A.
    8 days
    B.
    10 days
    C.
    12 days
    D.
    15 days

  19. 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:

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