A can do a piece of work in 12 days and B in 20 days. If they together work on it for 5 days, and remaining work is comp…

Computer A takes 3 minutes to process an input while computer B takes 5 minutes. If computers A, B and C can process an …

Two persons having different productivity of labour, working together can reap a field in 2 days. If one-third of the fi…

A group of workers can complete a piece of work in 50 days, when they are working individually. On the first day one per…

Ramesh and Rahman can do a work in 20 and 25 days respectively. After doing collectively 10 days of work, they leave th…

One man or two women or three boys can do a piece of work in 88 days. One man, one woman and one boy will do it in ?

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 in one day three times the work done by B in one day. They together finish $$\frac{2}{5}$$ of the work in 9 da…