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Time and Work in Aptitude MCQ Quiz (Multiple Choice Questions And Answers)

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21. A, B and C can do a piece of work in 7 days, 14 days and 28 days respectively. How long will they taken, if all the three work together?

  • 20
  • 4
  • 16
  • 2

22. After working for 6 days, Ashok finds that only 1/3 rd of the work has been done. He employs Ravi who is 60% as efficient as Ashok. How many days more would Ravi take to complete the work?

  • 10
  • 5
  • 20
  • 25

23. A is twice as good a work man as B and together they finish the work in 14 days. In how many days A alone can finish the work?

  • 7
  • 21
  • 14
  • 25

24. A, B and C can do a work in 6, 8 and 12 days respectively doing the work together and get a payment of Rs.1800. What is B’s share?

  • 600
  • 300
  • 1200
  • 1000

25. If A, B and C together can finish a piece of work in 4 days. A alone in 12 days and B in 18 days, then C alone can do it in?

  • 3
  • 6
  • 18
  • 9