If 16 men or 20 women can do a piece of work in 25 days. In what time will 28 men and 15 women do it ?

x does $$\frac{1}{4}$$ of a job in 6 days. y completes rest of the job in 12 days. Then x and y could complete the job …

A can do a piece of work in 90 days, B in 40 days and C in 12 days. They work for a day each in turn i.e., first day A d…

Subhash can copy 50 pages in 10 hours; Subhash and Prakash together can copy 300 pages in 40 hours. In how much time can…

If A and B together can complete a piece of work in 15 days and B alone in 20 days, in how many days can A alone complet…

A and B together complete a piece of work in T days. If A alone completes the work in T + 3 days and B alone completes t…

Twenty women can do a work in sixteen days. Sixteen men can complete the same work in fifteen days. What is the ratio be…

A takes twice as much time as B or thrice as much time as C to finish a piece of work. Working together, they can finish…