Q1. If 140 men working 8 hours per day can complete a piece of work in 30 days how many hours per day must 20 men work to complete the same job in 12 days

Q2. A B and C can alone complete a work in 10 12 and 15 days respectively All started the work but B left the work 3 days before completion How much work was then done by A and B together in the total work

Q3. Normal 0 MicrosoftInternetExplorer4 A can do a piece of work in 12 days When he had worked for 2 days B joins him If the complete work was finished in 8 days In how many days B alone can finish the work Style Definitions table MsoNormalTable mso style name Table Normal mso tstyle rowband size 0 mso tstyle colband size 0 mso style noshow yes mso style parent mso padding alt 0in 5 4pt 0in 5 4pt mso para margin 0in mso para margin bottom 0001pt mso pagination widow orphan font size 10 0pt font family Times New Roman Style Definitions table MsoNormalTable mso style name Table Normal mso tstyle rowband size 0 mso tstyle colband size 0 mso style noshow yes mso style parent mso padding alt 0in 5 4pt 0in 5 4pt mso para margin 0in mso para margin bottom 0001pt mso pagination widow orphan font size 10 0pt font family Times New Roman

Q4. A and B alone can do a piece of wok in 8 and 18 days respectively In how many days the work will be completed if they both work on alternate days starting with B

Q5. X Y and Z alone can do a certain piece of work in 42 30 and 35 days resp They started working together but after x days Z left the job and x days before completion of work Y also left the job Find the value of x if the whole work was completed in 3x days