Q1. 40 men undertook to do a work in 50days After 25days they found only 1 3rd of the work is complete Find how many more men they need to complete the work on time

Q2. 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

Q3. 4men and 6boys earn Rs1600 in 5days 3men and 7boys earn Rs1740 in 6days in what time will 7men and 6boys earn Rs3760

Q4. A man undertakes to do a certain work in 150 days He employs 200 men He finds that only a quarter of the work is done in 50 days The number of additional men that should be appointed so that the whole work will be finished in time is

Q5. A contract is to be completed in 56 days if 104 persons work each working at 8 hours a day After 30 days 2 5 of the work is completed How many additional persons should be deployed so that the work will be completed in the scheduled time each persons now working 9 hours a day