A group of workers was put on a job. From second day onwards, one worker was withdrawn each day. The job was finished wh…

If 10 persons can do a job in 20 days, then 20 person with twice the efficiency can do the same job in:

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…

A can do a piece of work in 5 days less than the time taken by B to do it. If both of them together take $${\text{11}}…

A can complete a piece of work in 10 days, B in 15 days and C in 20 days. A and C together for 2 days and A was replaced…

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…

A can finish a work in 18 days and B can do the same work in half the time take by A. Then, working together, what part …

42 women can do a piece of work in 18 days, How many women would be required do the same work in 21 days.