15 men can build a 500m long wall in 30 days. In how many days can 30 men build a 1.2 km long wall?
A. 48 days
B. 24 days
C. 40 days
D. 36 days
8 children and 12 men complete a certain piece of work in 9 days. If each child takes twice the time taken by a man to finish the work, in how many days will 12 men finish the same work ?
A. 6 days
B. 8 days
C. 10 days
D. 12 days
A is thrice as good a work man as B and takes 10 days less to do a piece of work than B takes. B can do the work in _____?
A. 15 days
B. 14 days
C. 16 days
D. 30 days
A tank can be filled by a pipe in 20 min. and by another pipe in 60 min. Both the pipes are kept open for 10 min. and then the first pipe is shut off. After this, the tank will be completely filled in __?
A. 10 min
B. 20 min
C. 30 min
D. 40 min
P, Q and R can do a work in 20, 30 and 60 days respectively. How many days does it need to complete the work if P does the work and he is assisted by Q and R on every third day?
A. 10 days
B. 14 days
C. 15 days
D. 9 days
3 men and 7 women can complete a work in 10 days . But 4 men and 6 women need 8 days to complete the same work . In how many days will 10 women complete the same work?
A. 50
B. 30
C. 40
D. 13
P takes twice as much time as Q or thrice as much time as R to finish a piece of work. They can finish the work in 2 days if work together. How much time will Q take to do the work alone?
A. 7
B. 8
C. 9
D. 6
Assume that 20 cows and 40 goats can be kept for 10 days for Rs.460. If the cost of keeping 5 goats is the same as the cost of keeping 1 cow, what will be the cost for keeping 50 cows and 30 goats for 12 days?
A. Rs.1104
B. Rs.1000
C. Rs.934
D. Rs.1210
If 6 men take 9 days to complete a work, how many men can complete the work in 3 days?
A. 2 men
B. 12 men
C. 9 men
D. 18 men
If 10 workers can make 10 tables in 10 days, then how many days would it take for 5 workers to make 5 tables?
A. 1
B. 5
C. 10
D. 25
