40 workers can build a home in 30 days.
After 'y' days, 15 workers left the work and the whole work was completed in 42 days.
Find the number of days after which 15 workers left the work?
A certain number of workers can finish a piece of work in 100 days.
If there were 10 workers less, it would take 10 days more for the work to be finished.
How many workers were there originally?
Sachin can do a work in 15 days and Virat in 20 days.
If they work on it together for 4 days, then what is the fraction of the work that is left?
P is able to do a piece of work in 15 days and Q can do the same work in 10 days. If they can work together for 2 days, what is the fraction of work left?
A forms a wall in 10 days and B forms it in 15 days. A and B start the work of forming wall together but after 2 days A leaves the work. How many days are required for making the remaining wall by B?