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 can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that …

3 men and 7 women can do a job in 5 days, while 4 men and 6 women can do it in 4 days. The number of days required for a…

If 2 men or 6 women or 4 boys can finish a work in 99 days, how many days will one man, one woman and one boy together t…

A started a ,work and left after working for 2 days. Then B was called and he finished the work in 9 days. had A left th…

A can finish a work in 18 days and B can do the same work in 15 days. B worked for 10 days and left the job. In how many…

A can do a piece of work in 70 days and B is 40% more efficient then A. Then the number of days taken by B to do the sa…