A can do a piece of work in 20 days, B can do the same work in 30 days. In how many days they can finish if both work combined

Rajesh and Santhosh are working on a piece of work. Rajesh takes 8 hours to write 32 pages on a system, while Santhosh takes 5 hours to write 30 pages. How much time will they take, working combined on two different PCs to complete the 120 page work?

If 8 machines can produce 560 units of a product in 10 hours, how many units will12 machines produced in 6 hours?

A can do a piece of work in 20 days, which B can do in 25 days. They start together, but B leaves after 5 days. In how many more days will A complete the work?

A can complete a piece of work in 8 days and B can complete the same work in 10 days. If they work on alternate days starting with A, in how many days will the work be completed?

A can do a piece of work in 18 days, B in 24 days, and C in 36 days. If A is assisted by B and C on every third day, in how many days will the work be completed?

A person alone can finish a piece of work of 500/- in 5 days. By involving another helper can finish it in just 4 days. How much A and helper contributed respectively

A is twice good as B and thrice good as C. If working all together, can complete a work in just 4 days. Find the time taken by A

A can do a job in 12 days. B is 40% as good as A. How many days B alone can do the same job.

A and B can do work in 5 days, B and C can do it in 10 days, A and C in 15 days. In how many days A alone can complete the work.