**1. 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:**

1/24 day

7/24 day

3 3/7 days

4 days

None of the above

**2. P, Q and R are three typists who working simultaneously can type 216 pages in 4 hours. In one hour, R can type as many pages more than Q as Q can type more than P. During a period of five hours, R can type as many pages as P can during seven hours. How many pages does each of them type per hour?**

14, 17, 20

15, 17, 22

15, 18, 21

16, 18, 22

None of the above

**3. 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:**

4 days

6 days

8 days

12 days

None of the above

**4. 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 is:**

4 days

6 days

8 days

18 days

None of the above

**5. A and B can do a job together in 7 days. A is 1 3/4 times as efficient as B. the same job can be done by A alone in:**

9 1/3 days

11 days

12 1/4 days

16 1/3 days

None of the above

**6. 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 the work. Approximately at what time will the work be finished?**

11:30 a.m.

12 noon

12:30 p.m.

1 p.m.

None of the above

**7. A and B together can do a piece of work in 12 days, which B and C together can do in 16 days. After A has been working at it for 5 days and B for 7 days, C finished it in 13 days. In how many days C alone will do the work?**

16

24

36

48

None of the above

**8. A, B and C can do a piece of work in 36, 54 and 72 days respectively. Then started the work but A left 8 days before the completion of the work while B left 12 days before the completion. The number of days for which C worked is:**

4

8

12

24

None of the above

**9. 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?**

3

5

7

Cannot be determined

None of the above

**10. If 12 men and 16 boys can do a piece of work in 5 days; 13 men and 24 boys can do it in 4 days, then the ratio of daily work done by a man to that of a boy is:**

2 : 1

3 : 1

3 : 2

5 : 4

None of the above

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