Time and Work

  • Time And Work Set 1
  • Time And Work Set 2
  • Time And Work Set 3
  • Time And Work Set 4
  • Time And Work Set  5

 

 Time And Work :-

 


  1. P and Q together can complete a work in 6 days. Q and R together can complete the same work in 15 days. P and R together can complete the work in 20/3 days. What is the ratio of number of days that Q alone takes to complete the work to the number of days that R alone takes to complete the work?
    1 : 3 : 5
    2 : 1 : 4
    3 : 2 : 5
    4 : 2 : 3
    5 : None of these
  2. A and B together can complete a piece of work in 15 days, B and C together can complete the work in 20 days. A and C together can complete the work in 30 days. What is the ratio of number of days A alone takes to do the work to the number of days C alone takes to do the work?
    1 : 1 : 6
    2 : 1 : 3
    3 : 2 : 3
    4 : 3 : 2
    5 : None of these
  3. Two boys can do a piece of work in ten days. Three girls can do the same work in five days. In how many days can a boy and a girl together do the work?
    1 : 16 days
    2 : 8(4/7) days
    3 : 12 days
    4 : 5 (1/2)days
    5 : None of these
  4. Four men can complete a work in 5 days which 20 women take 20 days to complete. How many days will 6 men and 40 women together take to complete the work?
    1 : 1day
    2 : 4days
    3 : 2 (1/2)days
    4 : 3days
    5 : None of these
  5. A and B can complete a work in 20 days and 30 days respectively. Both of them started doing the work and A left after six days. In how many more days can B complete the remaining work?
    1 : 20
    2 : 10
    3 : 15
    4 : 12
    5 : None of these
  6. A takes ten days more than B to complete a piece of work. If both of them can complete the work in 6(2/3 )days, in how many days can A alone complete the work?
    1 : 8
    2 : 12
    3 : 10
    4 : 20
    5 : None of these
  7. Four men and six women together can complete a work in nine days, while six men and three women can complete the work in nine days. In how many days can two men and three women complete the work?
    1 : 10 days
    2 : 16 days
    3 : 18 days
    4 : 20 days
    5 : None of these
  8. A tank of capacity 600 litres is attached with two pipes P1 and P2 at the top and another pipe P3 at the bottom of the tank. P1 and P2 fill the tank at the rate of four litres per minute and six litres per minute respectively while P3 empties the full tank in five hours. All the three pipes are opened when the tank is empty. In how much time will the tank be filled?
    1 : One hour 15 minutes
    2 : One hour 20 minutes
    3 : two hour 45 minutes
    4 : Two hours
    5 : None of these
  9. Four men can complete a work in six days where as five women can complete the same work in eight days. In how many days will six men and five women together complete the work?
    1 : 8 days
    2 : 3 days
    3 : 2(2/3) days
    4 : 6 days
    5 : None of these
  10. Work done by P in one day is double the work done by Q in one day and work done by Q in one day is thrice the work done by R in one day. If P, Q and R together can complete the work in 30 days then in how many days P alone can do the work?
    1 : 52 days
    2 : 42 days
    3 : 30 days
    4 : 45 days
    5 : None of these

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