31 
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?


Answer:
Option (c) 
32 
A certain number of men can complete a job in 30 days. If there were 5 men more, it could be completed in 10 days less. How many men were in the beginning?


Answer:
Option (a) 
33 
A is thrice as good a workman as B and so takes 60 days less than B for doing a job. The time in which they can do the job together is?


Answer:
Option (a) 
34 
A man can do a piece of work in 5 days, but with the help of his son, he can do the same work in 3 days. In what time can the son do it alone?


Answer:
Option (c) 
35 
A, B and C can do a piece of work in 11 days, 20 days and 55 days respectively, working alone. How soon can the work be done if A is assisted by B and C on alternate days?


Answer:
Option (b) 
36 
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?


Answer:
Option (b) 
37 
If 5 men or 9 women can do a piece of work in 19 days. In how many days will 3 men and 6 women do the same work?


Answer:
Option (d) 
38 
If 8 men, working 9 hours per day can build a wall 18 meters long, 2 meters wide and 12 meters high in 10 days. How many men will be required to build a wall 32 meters long, 3 meters wide and 9 meters high by working 6 hours a day in 8 days?


Answer:
Option (c) 
39 
Kim can do a work in 3 days while David can do the same work in 2 days. Both of them finish the work together and get Rs.150. What is the share of Kim?


Answer:
Option (b) 
40 
X can do 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?


Answer:
Option (a) 