Time and Work

1) 10 men can complete a job in 14 days. How long will it take 4 men to finish the same job if they work at the same rate?
(A) 33 days
(B) 35 days
(C) 37 days
(D) 39 days

2) 15 men can complete a job in 10 days. How long will it take 8 men to finish the same job if they work at the same rate.
(A) 14 3/4 days
(B) 16 3/4 days
(C) 18 3/4 days
(D) 20 3/4 days

3) If 9 men need 15 days to complete a task, how many days would it take to complete this task if 3 additional men were employed?
(A) 12 1/2
(B) 10
(C) 11 1/4
(D) 6

4) A and B can reap a field in 30 days working together. After 20 days, however B is called away and A takes 20 days more to complete the work. B alone can do the whole work in?
(A) 48 days
(B) 50 days
(C) 56 days
(D) 60 days

5) A can do a piece of work in 10 days and B can do it in 15 days. The number of days required by them to finish it working together is?
(A) 8
(B) 7
(C) 6
(D) 4

6) A group of labourers accepted to do a piece of work in 20 days. 8 of them did not turn up for the work and the remaining did the work in 24 days. The original number of labourers was?
(A) 47
(B) 48
(C) 49
(D) 50

7) If a certain job can be performed by 18 workers in 26 days, the number of workers needed to perform the job in 12 days is
(A) 39
(B) 30
(C) 24
(D) 45

8) A group of students volunteered to finish a construction work in 25 days. 10 of the students did not come and the work could be finished in 35 days. The original number of students in the group were.
(A) 25
(B) 32
(C) 35
(D) 37





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