Q1. A can do a piece of work in 12 days for 6 hours per day and B can do it in 8 days for 7 hours per day How long will they take to do the work working together for 9 hours a day

Q2. To do a certain work the ratio of the efficiencies of A and B is 5 11 Working together they can do the same work in days A and B work together for 20 days C alone completes the remaining work in 18 days C alone can do 75 of the original work in

Q3. A and B together can do a piece of work in 8 days If A alone can do the same work in 12 days then B alone can do the same work in

Q4. A and B working together can complete 45 of a work in 18 days A alone can complete the same work in 60 days A and B work together for 16 days and then A leaves B alone will complete the remaining work in

Q5. P can do a piece of the work in 18 days and Q can do same work in 36 days How long will they take in days if they work together to complete the above mentioned work