**1. A and B can complete a job in 24 days working together. A alone can complete it in 32 days. Both of them worked together for 16 days and then A left. The number of days B will take to complete the remaining job is**

(a) 16

(b) 32

(c) 64

(d) 128

(e) None of these

**2. In a hostel, there are 120 students and food stock is for 45 days. If 60 new students join the hostel, in how many days will the complete stock be exhausted?**

(a) 38

(b) 40

(c) 32

(d) 36

(e) None of these

**3. A certain number of men can do a piece of work in 80 days. If there were 10 men less, It could be finished in 20 days more. How many men are there in second case?**

(a) 45

(b) 50

(c) 40

(d) 60

(e) 55

**4. P takes twice the time taken by Q and thrice the time taken by R to do a particular piece of work. Working together, they can complete the work in 2 days. Find the number of days taken by R to complete the work alone.**

(a) 4

(b) 6

(c) 8

(d) 2

(e) 5

**5. 2 men or 3 women or 5 children can paint a house in 10 days. The painting is given to a couple and their 5 sons. They finish the job in**

**6. In a factory, there are equal number of men and children. Men work for 6 h a day and children for 4 h a day. During festival time, the work load goes up by 100%. The government rule does not allow children to work for more than 6 h a day. If they are equally efficient and the extra work is done by men, then extra hours of work put in by men everyday are**

(a) 5

(b) 3

(c) 4

(d) 9

(e) 8

**7. A contract is to be completed in 92 days and234 men were set to work, each working 8 h a day. After 66 days, 3/7 of the work is completed. How many additional men may be employed, so that the work may be completed in time, each man now working 9 h a day?**

(a) 160

(b) 230

(c) 620

(d) 700

(e) None of the above

**8. Rahul can do a piece of work in 16 days. Ravinder can do the same work in12 4/5 days, while Girish can do it in 32 days. All of them started to work together but Rahul leaves after 4 days. Ravinder leaves the job 3 days before the completion of the work. How long would the work last?**

(a) 9 days

(b) 6 days

(c) 8 days

(d) 5 days

(e) 4 days

**9. Amit and Bhanu can do a piece of work in 9 days and 18 days, respectively. As they were ill, they could do 45% and 90% of their efficiency, respectively. How many days will they take to complete the work together?**

(a) 7

(b) 8

(c) 5

(d) 10

(e) 12

**10. Ajit, Bikram and Chandu can do a piece of work individually in 8, 12 and 15 days, respectively. Ajit and Bikramstart working but Ajit quits after working for 4 days. After this, Chandu joins Bikram till the completion of work. In how many days will the work be completed?**