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Arithmetic Aptitude :: Time and Work

  1. 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:

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

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  3. 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:

  4. A.
    1/24 day
    B.
    7/24 day
    C.
    3 3/7 days
    D.
    4 days

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  5. 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?

  6. A.
    7 hours 30 minutes
    B.
    8 hours
    C.
    8 hours 15 minutes
    D.
    8 hours 25 minutes

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  7. 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?

  8. A.
    11 days
    B.
    13 days
    C.
    20 3/17 days
    D.
    None of these

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  9. 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?

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

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  11. 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?

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

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  13. 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?

  14. A.
    5 5/11
    B.
    5 6/11
    C.
    6 5/11
    D.
    6 6/11

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  15. 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?

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

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  17. 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?

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

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  19. 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?

  20. A.
    5
    B.
    5 1/2
    C.
    6
    D.
    8

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