Q. 1.A work is to be completed in 40 days and 110 men were set to work, each working 8 hours a day. After 30 days, 4/5 of the work is completed. How many additional men may be employed so that the work may be completed in time, each man now working 10 hours a day?

Q. 2.Two pipes 1 and 2 can fill a tank in 10 hours and 30 hours respectively while a third pipe can empty the full tank in 25 hours. All the three pipes are opened in the beginning. After 15 hours, third pipe is closed. In how much time, will the tank be full?

Q. 3.A worker was paid Rs. 1700per day for 30 days. but he was absent for 4 days and Rs. 15 was taken as penalty per day for absence. He was paid the full salary only for 18 days as he came late on the other days. Those who came late were given only half the salary for that day. What was the total salary paid per month to a worker who came on time everyday and was never absent?

Q. 4.Person A can do a piece of work in 10 days and person B can do it in 12 days. They work together for 3 days. Then person B leaves and A alone continues. 2 days after that C joins and the work is completed in 2 days. In how many days can C do it, if he works alone?

Q. 5.Two men undertake to do a piece of work for Rs. 1200. One alone could do it in 12 days and the other in 16 days. With the assistance of a boy, they finish it in 6 days. The boy’s share should be-

Q. 6.Arun can do as much work in 4 days as lalitha can do in 5, and lalitha can do as much work in 6 days as suma in 7 days. In what time will suma do a piece of work which Arun can do in a week?

Q. 7.The work done by 8 men in 24 days is equal to the work done by 12 women in 20 days and is also equal to the work done by 16 children in 18 days. A man, a woman and a child working together take 20 days to complete a particular job. In how many days will the same job be completed by 4 women and 10 children working together?

Q. 8.Akil, Bindhu and Jay can do a job in 20, 30 and 40 days respectively. The three started the job together; Akil left the job 4 days before it was completed and Bindhu left the job 3 days before it was completed. In how many days was the job completed?

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