**941. B can work 3 times faster than A. They work together on a task and complete it in a day. How long does it take for B alone to complete the task??****A. 32 hours**

B. Â 48 hours

C. Â 3 days

D. Â 4 days

**942. 4 men and 2 woman can complete a work in 2 days. If 2 men alone take 5 days to complete the work, find the time taken by 2 women alone to complete the work.?**

A. 15 days**B. Â 10 days**

C. Â 8 days

D. Â 20 days

**943. A and B working separately can do a piece of work in 9 and 12 days respectively. If they work for a day alternately. If A begins first, in how many days the work will be completed ??**

A. 42/4 days**B. Â 41/4 days**

C. Â 55 days

D. Â None of these

**944. Two pipes can fill a tank in 10 hrs. and 12 hrs. respectively while a third pipe empties the full tank in 20 hrs. Â If all the three pipes operate together , in how much time the tank will be filled ?Â ?****A. 7.5 hrs**

B. Â 5 hrs

C. Â 7 hrs

D. Â None of these

**945. If two pipes function together, the cistern will be filled in 6 hrs. Â One pipe fills the cistern 5 hrs. faster than the other. Â How many hours it take the second pipe to fill the cistern??**

A. 5 hrs

B. Â 10 hrs**C. Â 15 hrs**

D. Â 20 hrs

**946. A can do a particular work in 6 days . B can do the same work in 8 days. A and B signed to do it for Rs. 3200. They completed the work in 3 days with the help of C. How much is to be paid to C??**

A. Rs. 380

B. Â Rs. 600

C. Â Rs. 420**D. Â Rs. 400**

**947. A can complete a work in 12 days with a working of 8 hours per day. B can complete the same work in 8 days when working 10 hours a day. If A and B work together, working 8 hours a day, the work can be completed in_______days.?****A. 5 5â„11**

B. Â 4 5â„11

C. Â 6 4â„11

D. Â 6 5â„11

**948. P and Q can do a work in 30 days. Q and R can do the same work in 24 days and R and P in 20 days. They started the work together, but Q and R left after 10 days. How many days more will P take to finish the work??**

A. 10

B. Â 8**C. Â 18**

D. Â 19

**949. If X and Y complete a certain work in 10 days, Y and Z in 16 days and X and Z in 22 days, find the time required for each one to complete the work while working separately.?****A. 120, 40, 60 days**

B. Â 120, 60, 80 days

C. Â 40, 30, 120 days

D. Â 30, 40, 60 days

**950. The speed of a motor boat is that of the current of water as 36:5. The boat goes along with the current in 5 hours 10 min, it will come back in_______??**

A. 5 hours 50 min

B. 6 hours**C. 6 hours 50 min**

D. 12 hours 10 min