Home / Arithmetic Aptitude / Time and Work :: [Data Sufficiency 4]

Arithmetic Aptitude :: Time and Work

  1. A, B, and C together can complete a work in 6 days. The efficiency of A and C is 3 times of B, and the efficiency of A is 4 times of C, and then they alone can finish the job in how many days.
  2. A.
    10, 24, 40 days
    B.
    15, 30, 60 days
    C.
    12, 12, 18 days
    D.
    15, 60, 30 days

    View Answer

    Workspace

    Discuss Discuss in Forum


  3. A does half as much as work as B in 1/6 of the time taken by B. Together they can complete the work in 10 days. B alone can complete the work in how many days?
  4. A.
    20 days
    B.
    30 days
    C.
    40 days
    D.
    50 days

    View Answer

    Workspace

    Discuss Discuss in Forum


  5. A man can finish a work in 20 days, a woman can finish the same work in 30 days, and a boy can finish the same work in 60 days. 2 men, 8 women, and some boys working together can finish the work in 2 days. Find how many boys are working?
  6. A.
    10 boys
    B.
    8 boys
    C.
    9 boys
    D.
    15 boys

    View Answer

    Workspace

    Discuss Discuss in Forum


  7. A contractor undertakes to complete the job in 38 days. He assigns 30 workers on the job, and after 25 days he assigns 5 more workers and finishes the work one day before the given time. If he did not assign extra numbers of workers then work will be late by how many days.
  8. A.
    1 day
    B.
    2 days
    C.
    5 days
    D.
    1.5 days

    View Answer

    Workspace

    Discuss Discuss in Forum


  9. 30 men can complete the work in 30 days. If after every 10 days, 5 workers leave the job, the work will be finished in how many days?
  10. A.
    32 days
    B.
    35 days
    C.
    37 days
    D.
    40 days

    View Answer

    Workspace

    Discuss Discuss in Forum


  11. A contractor undertakes to complete a work in 120 days with the help of 100 workers. After 45 days, he finds that only ¼ of the work has been completed. To complete the remaining work, how many extra workers will be required?
  12. A.
    80 workers
    B.
    180 workers
    C.
    160 workers
    D.
    100 workers

    View Answer

    Workspace

    Discuss Discuss in Forum


  13. A and B individually can finish a job in 20 and 30 days respectively. They start working together, and B leaves the job 5 days before completion, now the work will be finished in how many days?
  14. A.
    12 days
    B.
    14 days
    C.
    16 days
    D.
    18 days

    View Answer

    Workspace

    Discuss Discuss in Forum


  15. A, B, and C can finish a work in 18, 27, and 36 days respectively. All three start working together. A leaves the job after 8 days, and B leaves the job 6 days before it is finished, then the work will be finished in how many days?
  16. A.
    12 days
    B.
    13 days
    C.
    18 days
    D.
    36 days

    View Answer

    Workspace

    Discuss Discuss in Forum


  17. A and B together can finish a work in 4 days. If A reduces his efficiency by 30%, and B increases his efficiency by 10 %, the work is finished in 5 days. If A works for his original efficiency and B works for 1[1/2] times of his efficiency, they together can finish the job in how many days?
  18. A.
    3[5/9] days
    B.
    4[6/5] days
    C.
    5 days
    D.
    6 days

    View Answer

    Workspace

    Discuss Discuss in Forum


  19. A hostel has sufficient food for 200 students for 50 days. After 10 days, 50 more students join the hostel. Now, the food will continue for how many days?
  20. A.
    20 days
    B.
    32 days
    C.
    40 days
    D.
    50 days

    View Answer

    Workspace

    Discuss Discuss in Forum