**931. Bilal can do a work in 15 days and Jalal in 12 days. If they work on it together for 4 days, the fraction of work that is left is________??**

A. 3/5

B. Â 4/7**C. Â 2/5**

D. Â 1/4

**932. 2 men and 12 women can finish a job in 4 days. 4 men and 6 women can do the same job in 5 days. Find the time taken by 1 man and 1 woman to complete the job.?**

A. 30 days

B. Â 25 days**C. Â 24 days**

D. Â 20 days

**933. A alone can finish a work in 10 days and B alone can do it in 15 days. If they work together and finish, then out of a total wages of Rs.75. A will get:___________??**

A. 35 Rs.

B. Â 40 Rs.**C. Â 45 Rs**.

D. Â None of these

**934. To fill a cistern, pipes P, Q & R take 20, 15 & 12 minutes respectively. Â The time in minutes that the three pipes together will take to fill the cistern is:__________??****A. 5 min**

B. Â 10 min

C. Â 15 min

D. Â 20 min

**935. A cistern has two taps which fill it in 12 min. and 15 min.respectively Â There is one outlet pipe in the cistern. Â When all the taps & pipe are opened, the empty cistern is full in 20 min. Â How long will the waste pipe (outlet) take to empty the full cistern ??****A. 10 min**

B. Â 20 min

C. Â 30 min

D. Â 40 min

**936. 6 men and 8 women can complete a work in 10 days. 26 men and 48 women can finish the same work in 2 days. 15 men and 20 women can do the same work in_______days.?****A. 4 days**

B. Â 6 days

C. Â 2 days

D. Â 8 days

**937. P is 30% more efficient than Q. P can complete a work in 23 days. If P and Q work together, how much time will it take to complete the same work??**

A. 9

B. Â 11

C. Â 23**D. Â 13**

**938. P works twice as fast as Q. If Q alone can complete a work in 12 days, P and Q can finish the work in________days?**

A. 1

B. Â 2

C. Â 3**D. Â 4**

**939. If 6 men working together can complete 50 identical tasks in 4 hours then how many such identical tasks can be completed if 10 men are working together for 6 hours??**

A. 20

B. Â 25**C. Â 125**

D. Â 60

**940. A and B together take 6 days to complete a task. B and C together take 12 days to complete the same task. A and C together take 8 days to complete it. If A, B and C are working together, how long does it take for them to complete the task??**

A. 4(2/3) days

B. Â 4 days**C. Â 5(1/3) days**

D. Â 1(1/3) days