TIME AND WORK

Time And Work Fully solved questions with complete explanation for written test, interview, competitive exams and entrance test. This section is very useful for those who are preparing for competitive exams such as Written test of IT companies,Bank Exams, CAT Exams, GATE Exams, Railway Exams, SSC, UPSC, Defence and many more.

Q. A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is

  • A) 1/4
  • B) 1/10
  • C) 7/15
  • D) 8/15
Q. A contractor undertakes to build a wall in 50 days and employs 50 people. However, after 25 days he finds that the work is only 40% complete. How many more men will he need to complete the work in time?

  • A) 25
  • B) 50
  • C) 75
  • D) 100
Q. A can do a work in 24 days. B can do it in 32 days. C can do it 60 days. They start working together and A left after 6 days and B left after working for 8 days. How many more days are required to complete the whole work?

  • A) 30
  • B) 25
  • C) 22
  • D) 20
Q. A company contracts to paint 3 houses. Mr.Brown can paint a house in 6 days while Mr.Black would take 8 days and Mr.Blue 12 days. After 8 days Mr.Brown goes on vacation and Mr. Black begins to work for a period of 6 days. How many days will it take Mr.Blue to complete the contract?

  • A) 7
  • B) 8
  • C) 11
  • D) 12
Q. A can have a piece of work done in 8 days, B can work three times faster than the A, C can work five times faster than A. How many days will they take to do the work together ?

  • A) 3 days
  • B) 8/9 days
  • C) 4 days
  • D) cant say
Q. John can do a piece of work in 24 days. Shawn.in18 days and Kurt in 12 days. If John is assisted by Shawn on one day & by Kurt on next day alternately work will be completed in

  • A) 8.5 days
  • B) 80/9 days
  • C) 82/9 days
  • D) 9 days
Q. The work done by women in 4 hrs is equal to the work done by man in 3 hrs and by boys in 6 hrs: If working 6 hrs per day 9 men can complete the work in 6 days, then in how many days can 12 men,12 women and 12 boys together finish same work in 8 hrs per day.

  • A) 2.5 days
  • B) 1.5 days
  • C) 3.5 days
  • D) None of these
Q. 18 men can complete a piece of work in 33 days. How many more men are required to complete the same work in 27 days?

  • A) 22
  • B) 4
  • C) 8
  • D) 5
Q. If 36 men, working 8 hours a day can do a piece of work in 18 days. in how many days 24 men working 9 hours a day will finish double the work?

  • A) 32 days
  • B) 48 days
  • C) 64 days
  • D) 72 days
Q. 16 men can do a piece of work in 16 days. 4 days after they started the work, 8 more men joined them.how many days will they now take to complete the remaining work?

  • A) 12 days
  • B) 8 days
  • C) 15 days
  • D) 6 days
Today's Challenging Question
Q. Ajay & Bimal can do a price of work in 10 days, Bimal & Chetan can do in 15 days and Chetan and Ajay in 20 days. They work together for 6 days and then Ajay leaves and now Bimal & Chetan work together for 4 more days. If Bimal leaves, how long will Chetan take to finish the work?
A) 12 days
B) 10 days
C) 16 days
D) none
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