1. 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: (1)
- 1. 4 days
- 2. 5 days
- 3. 6 days
- 4. 7 days
2. 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? (3)
- 1. 8 hours
- 2. 10 hours
- 3. 12 hours
- 4. 24 hours
3. 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 lone in 50 days, then B alone could do it in: (3)
- 1. 15 days
- 2. 20 days
- 3. 25 days
- 4. 30 days
4. 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 ? (4)
- 1. 11:30 A.M.
- 2. 12 noon
- 3. 12:30 P.M.
- 4. 1:00 P.M.
5. 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? (2)
- 1. 12 days
- 2. 15 days
- 3. 16 days
- 4. 18 days