Q1. P is twice as efficient as Q Q takes 12 days to complete a job If both of them work together how much time will they take to complete the job

Q2. P does half as much work as Q in three fourth of the time If together they take 24 days to complete the work how much time shall P take to complete the work

Q3. A piece of work has to be completed in 50 days a number of men are employed but it is found that only half of the work is done in 30 days then an additional 20 men were joined to complete the work on time How many men initially put to work

Q4. Atul can complete an assignment of economics in 10 days while Rekha can complete same assignment in 20 days If they together make this assignment and work on it for five days then what fraction of assignment left

Q5. A contract is given to 40 person to do a work in 45 days After 25 days it is found that only half work is done then find how many more persons are required to complete the work on time