Q1. 39 persons can repair a road in 12 days working 5 hours a day In how many days will 30 persons working 6 hours a day complete the work

Q2. A and B can do a piece of work in 8 days B and C can do it in 12 days and A and C in 16 days Working together they will complete the work in how many days

Q3. A can do a piece of work in 40 days B can do the same piece of work in 60 days A and B started the work together in the first 15 days A worked with 50 of his efficiency in the next 15days B worked with 50 of his efficiency Now in how many days does the remaining work will be completed if both of them work with their full efficiencies

Q4. If A can complete a work in 30 days B can do the same work in 36 days If after doing 5 days leaves the work Find in how many days B will do the remaining work

Q5. A building contractor undertook to finish a certain work in 162 days and employed 150 men After 72 days he found that he had already done 2 3 of the work How many men can be discharged now so that the work finish in time