Aptitude – Time and work

**(1)** A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C, they completed the work in 3 days. How much is to be paid to C?

- (a) Rs. 375
- (b) Rs. 400
- (c) Rs. 600
- (d) Rs. 800

**(2)** Worker X can complete a task in 15 days. Worker Y is 50% more efficient than X. How long will it take for Y to complete the same task?

- (a) 10 days
- (b) 12 days
- (c) 20 days
- (d) 7.5 days

**(3)** P and Q can do a job in 20 days together. P is 25% more efficient than Q. In how many days can P complete the job alone?

- (a) 24 days
- (b) 32 days
- (c) 30 days
- (d) 35 days

**(4)** If 10 men or 15 women can complete a work in 60 days, how many days will 5 men and 6 women take to complete the same work?

- (a) 100 days
- (b) 60 days
- (c) 80 days
- (d) 120 days

**(5)** R and S together can finish a piece of work in 12 days. S and T together can do it in 15 days, while T and R can do it in 20 days. How long will R take to do it alone?

- (a) 30 days
- (b) 24 days
- (c) 36 days
- (d) 40 days