If 3 persons can do a piece of work in 4 days, then 4 persons can do it in …… days.

A alone can do a piece of work in 8 days while B alone can do it in 10 days. If they together complete this work and get X 900 as their remuneration, then find the shares of both the persons.

A and B together can do a piece of work in 12 days and A alone can do it in 18 days. In how many days canBalone do it?

If 20 persons can do a piece of work in 7 days, then the number of persons required to complete the work in 28 days:

If 40 persons can do a piece of work in 14 days, then the number of persons required to complete the work in 28 days.

A person can do a piece of work in 26 days and an another person can do the same work in 39 days. If they work together, then by what per cent the wages of 1st person is more than that of 2nd person?

A and B together can do a piece of work in 36 days, B and C together can do it in 24 days. A and C together can do it in 18 days. The three working together can finish the work in