A can do a job in 4 days and B can do the same job in 6 days. If A’s efficiency increases to 4/3 times, then by how many times B has to reduce his efficiency so that the work can be completed by both of them in two days?

A and B together can complete a piece of work in 8 days. B and C together can complete the same work in 12 days. C and A together can complete the same work in 16 days. A and B began the work together and left after some days. C finished the remaining work. If it took a total of 74 days to complete the entire work, for how many days did A and B work together?

Work done by P in one day is double the work done by Q in one day and work done by Q in one day is thrice the work done by R in one day. If P, Q and R together can complete the work in 30 days then in how many days P alone can do the work?

A can do a certain work in 24 days whereas B can do the same work in 32 days. They took the help of C and together completed the same work in 12 days. If they received Rs.2112 for doing the work, what is C’ s share?

P and Q can complete a job in 20 days working together. P and R can complete it in 30 days working together. Q and R can complete it in 40 days working together. Find the time taken by P, Q and R to complete it working together.

A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C, they completed the work in 3 days. How much is to be paid to C?

A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:

A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day?

A and B together can complete a work in 12 days. A alone can complete it in 20 days. If B does the work only for half a day daily, then in how many days A and B together will complete the work?

If A can do 1/4 of a work in 3 days and B can do 1/6 of the same work in 4 days, how much will A get if both work together and are paid Rs. 180 in all?