A can do 50% of a work in 16 days, B can do 1/4 of the same work in 24 days. In how many days will they complete 3/4th of the work working together?

Some men can do a piece of work in 60 days. If there are 8 more men, the work can be completed in 10 days less. What was the number of men in the beginning?

Amar can do a piece of work in 30 days and Raman can do the same work in 15 days. If both work together, then what percent of the total work will be completed in 4 days?

Aman and Raman together can complete a work in 30 days, Raman and Manan can complete the same work in 36 days and Manan and Aman can complete the same work in 45 days. In how many days can all three together complete the work?

Asif is twice as good a workman as Bashir and together they can complete a work in 30 days. In how many days will Asif alone complete the work?

X can finish a work in 25 days. Y can do the same work in 20 days. Together they work for 5 days and then X leaves. In how many days can Y alone complete the remaining work?

A can do a piece of work in 18 days and B in 36 days. If they work together for 9 days, then what percentage of work will be left?

A, B and three men can finish a work in 10, 20 and 15 days respectively, then in how many days will all three together finish the work?