Time and Work Free Question Bank
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 |
E NA
A can lay railway track between two given stations in 16 days and B can do the same job in 12 days. With help of C, they did the job in 4 days only. Then, C alone can do the job in:
A
| 9 | 1 | days |
| 5 |
B
| 9 | 2 | days |
| 5 |
C
| 9 | 3 | days |
| 5 |
D 10
E NA
A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day?
A 12 daysB 15 days
C 16 days
D 18 days
E NA
A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:
A 20 daysB
| 22 | 1 | days |
| 2 |
C 25 days
D 30 days
E NA
A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C, they completed the work in 3 days. How much is to be paid to C?
A Rs. 375B Rs. 400
C Rs. 600
D Rs. 800
E NA
If 6 men and 8 boys can do a piece of work in 10 days while 26 men and 48 boys can do the same in 2 days, the time taken by 15 men and 20 boys in doing the same type of work will be:
A 4 daysB 5 days
C 6 days
D 7 days
E NA
A can do a piece of work in 4 hours; B and C together can do it in 3 hours, while A and C together can do it in 2 hours. How long will B alone take to do it?
A 8 hoursB 10 hours
C 12 hours
D 24 hours
E NA
A can do a certain work in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do it in:
A 15 daysB 20 days
C 25 days
D 30 days
E NA
A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?
A 23 daysB 37 days
C 37
D 40 days
E NA
A machine P can print one lakh books in 8 hours, machine Q can print the same number of books in 10 hours while machine R can print them in 12 hours. All the machines are started at 9 A.M. while machine P is closed at 11 A.M. and the remaining two machines complete work. Approximately at what time will the work (to print one lakh books) be finished ?
A 11:30 A.M.B 12 noon
C 12:30 P.M.
D 1:00 P.M.
E NA
A can finish a work in 18 days and B can do the same work in 15 days. B worked for 10 days and left the job. In how many days, A alone can finish the remaining work?
A 5B
| 5 | 1 |
| 2 |
C 6
D 8
E NA
4 men and 6 women can complete a work in 8 days, while 3 men and 7 women can complete it in 10 days. In how many days will 10 women complete it?
A 35B 40
C 45
D 50
E NA
A and B can together finish a work 30 days. They worked together for 20 days and then B left. After another 20 days, A finished the remaining work. In how many days A alone can finish the work?
A 40B 50
C 54
D 60
E NA
P can complete a work in 12 days working 8 hours a day. Q can complete the same work in 8 days working 10 hours a day. If both P and Q work together, working 8 hours a day, in how many days can they complete the work?
A| 5 | 5 |
| 11 |
B
| 5 | 6 |
| 11 |
C
| 6 | 5 |
| 11 |
D
| 6 | 6 |
| 11 |
E NA
10 women can complete a work in 7 days and 10 children take 14 days to complete the work. How many days will 5 women and 10 children take to complete the work?
A 3B 5
C 7
D Cannot be determined
E NA
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 daysB 10 days
C 15 days
D 20 days
E NA
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 daysB 13 days
C
| 20 | 3 | days |
| 17 |
D None of these
E NA
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 minutesB 8 hours
C 8 hours 15 minutes
D 8 hours 25 minutes
E NA
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 | day |
| 24 |
B
| 7 | day |
| 24 |
C
| 3 | 3 | days |
| 7 |
D 4 days
E NA
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 15B 16
C 18
D 25
E NA
A takes twice as much time as B or thrice as much time as C to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in:
A 4 daysB 6 days
C 8 days
D 12 days
E NA
A and B can complete a work in 15 days and 10 days respectively. They started doing the work together but after 2 days B had to leave and A alone completed the remaining work. The whole work was completed in :
A 8 daysB 10 days
C 12 days
D 15 days
E NA
A and B can do a piece of work in 30 days, while B and C can do the same work in 24 days and C and A in 20 days. They all work together for 10 days when B and C leave. How many days more will A take to finish the work?
A 18 daysB 24 days
C 30 days
D 36 days
E NA
A works twice as fast as B. If B can complete a work in 12 days independently, the number of days in which A and B can together finish the work in :
A 4 daysB 6 days
C 8 days
D 18 days
E NA
Twenty women can do a work in sixteen days. Sixteen men can complete the same work in fifteen days. What is the ratio between the capacity of a man and a woman?
A 3 : 4B 4 : 3
C 5 : 3
D Data inadequate
E NA
A and B can do a work in 8 days, B and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A and C together will do it in :
A 4 daysB 6 days
C 8 days
D 12 days
E NA
A can finish a work in 24 days, B in 9 days and C in 12 days. B and C start the work but are forced to leave after 3 days. The remaining work was done by A in:
A 5 daysB 6 days
C 10 days
D
| 10 | 1 | days |
| 2 |
E NA
X can do a piece of work in 40 days. He works at it for 8 days and then Y finished it in 16 days. How long will they together take to complete the work?
A
| 13 | 1 | days |
| 3 |
B 15 days
C 20 days
D 26 days
E NA
A and B can do a job together in 7 days. A is 1 times as efficient as B. The same job can be done by A alone in :
A
| 9 | 1 | days |
| 3 |
B 11 days
C
| 12 | 1 | days |
| 4 |
D
| 16 | 1 | days |
| 3 |
E NA
A and B together can do a piece of work in 30 days. A having worked for 16 days, B finishes the remaining work alone in 44 days. In how many days shall B finish the whole work alone?
A 30 daysB 40 days
C 60 days
D 70 days
E NA
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