Time and work Practice Question and Answer

Q:

A work is done in 16 days by 8 labours. They worked together for 2 days and after that 8 additional labours joined them. The rest work will be finished by them in ______

1896 0

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

Q: A and B can do a piece of work in 12 days. B and C in 15 days and C and A in 20 days. If A, B and C work together, they will completer the work in : 1725 0

  • 1
    5 days
    Correct
    Wrong
  • 2
    $$ 7{5\over 6} \ days$$
    Correct
    Wrong
  • 3
    10 days
    Correct
    Wrong
  • 4
    $$ 15 {2\over 3} \ days$$
    Correct
    Wrong
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Answer : 3. " 10 days"

Q: A certain work can be completed in 100 days by a certain number of men. But, due to the absence of 10 people it could be completed in 110 days. How many workers were employed initially? 2999 0

  • 1
    100
    Correct
    Wrong
  • 2
    110
    Correct
    Wrong
  • 3
    55
    Correct
    Wrong
  • 4
    50
    Correct
    Wrong
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Answer : 2. " 110"

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? 1739 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; 1780 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? 3027 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"

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