Time and Work Questions and Answers

General Aptitude

Time and Work

    16) 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?

  • A)6 days
  • B)10 days
  • C)15 days
  • D)20 days
Answer: B

    17) 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?

  • A)11 days
  • B)13 days
  • C)20(3/17)days
  • D)None of these
Answer: B

    18) 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?

  • A)7 hours 30 minutes
  • B)8 hours
  • C)8 hours 15 minutes
  • D)8 hours 25 minutes
Answer: C

    19) 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:

  • A)1/24 day
  • B)7/24 day
  • C)3(3/7) days
  • D)4 days
Answer: C

    20) 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:

  • A)15
  • B)16
  • C)18
  • D)25
Answer: B