Q1. A and B can do a work in 60 days B and C can do a work in 40 days and C and A can do the same work in 50 days Find in how many days they together can complete the work

Q2. A can do 2 5 work in 8 days B can do 3 5 work in 18 days In how many days together they can do 3 4 work

Q3. 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

Q4. 3 men and 5 women do a piece of work in 9 days and 2 men 7 children do the same in 6 days How many women can do as much work as 21 children

Q5. A and B can do a piece of work in 45 days and 40 days respectively They began to do the work together but A leaves after some days and then B completed the remaining work in 23 days The number of days after which A left the work was