Time and work Practice Question and Answer

Q: Ratan can complete a work in \(5 {1 \over 2}\) days while Rupesh can complete it in \(10 {1 \over 2}\) days. In how many days can they both complete it working on it together? 4539 2

  • 1
    \(3 {39 \over 64 }\)
    Correct
    Wrong
  • 2
    \(4 {39 \over 64 }\)
    Correct
    Wrong
  • 3
    \(5 {39 \over 64 }\)
    Correct
    Wrong
  • 4
    \(6 {39 \over 64 }\)
    Correct
    Wrong
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Answer : 1. "\(3 {39 \over 64 }\) "

Q:

8 men and 4 women together can complete a piece of work in 6 days. Work done by a man in one day is double the work done by a woman in one day. If 8 men and 4 women started working and after 2 days, 4 men left and 4 new women joined, in how many more days will the work be completed? 

1922 0

  • 1
    5 days
    Correct
    Wrong
  • 2
    8 days
    Correct
    Wrong
  • 3
    6 days
    Correct
    Wrong
  • 4
    4 days
    Correct
    Wrong
  • 5
    9 days
    Correct
    Wrong
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Answer : 1. "5 days "

Q: A can do a piece of work in 6 days and B in 9 days. How many days will both take together to complete the work? 1738 0

  • 1
    7.5 days
    Correct
    Wrong
  • 2
    5.4 days
    Correct
    Wrong
  • 3
    3.6 days
    Correct
    Wrong
  • 4
    3 days
    Correct
    Wrong
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Answer : 3. " 3.6 days"

Q: A can cultivate $${2\over 5}$$ of a land in 6 days and b can cultivate $${1\over 6}$$ of the same land in 10 days. Working together A and B can cultivate $${4\over 5}$$ of the land in; 1776 0

  • 1
    4 days
    Correct
    Wrong
  • 2
    5 days
    Correct
    Wrong
  • 3
    8 days
    Correct
    Wrong
  • 4
    10 days
    Correct
    Wrong
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Answer : 3. " 8 days"

Q: A and B can do a piece of work in 72 days. B and C can do it in 120 days. A and C can do it in 90 days. In how many days all three together can do the work ? 1698 0

  • 1
    80 days
    Correct
    Wrong
  • 2
    100 days
    Correct
    Wrong
  • 3
    60 days
    Correct
    Wrong
  • 4
    150 days
    Correct
    Wrong
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Answer : 3. " 60 days"

Q: A, B and C can complete a work in 10, 15 and 20 days respectively. A and B start it together. B is replaced by C after 2 days. A leave it after one more day. In how many days work was completed? 3024 0

  • 1
    13
    Correct
    Wrong
  • 2
    \(13 {1 \over 13 }\)
    Correct
    Wrong
  • 3
    \(18 {4 \over 3 }\)
    Correct
    Wrong
  • 4
    18
    Correct
    Wrong
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Answer : 2. " \(13 {1 \over 13 }\)"

Q:

A, B and C can complete a piece of work in 10, 12, and 15 days respectively, They started the work together. But A left the work before 5 days of its completion. B also left the work 2 days after A left. In how many days was the work completed?

1524 0

  • 1
    4 days
    Correct
    Wrong
  • 2
    5 days
    Correct
    Wrong
  • 3
    7 days
    Correct
    Wrong
  • 4
    8 days
    Correct
    Wrong
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Answer : 3. "7 days"

Q:

A and B together can do a piece of work in 12 days which B and C together can do in 16 days. After A has been working at it for 5 days and B for 19 days, C finishes it in 7 days. In how many days B could finish the whole work? 

1674 0

  • 1
    48 days
    Correct
    Wrong
  • 2
    24 days
    Correct
    Wrong
  • 3
    16 days
    Correct
    Wrong
  • 4
    12 day
    Correct
    Wrong
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Answer : 1. "48 days "

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