A can do a work in 10 days. The efficiency of A is 20% less than B. How many days B need to finish the same work?

A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assist…

A can do a piece of work in 20 days and B in 40 days. If they work together for 5 days, then the fraction of the work th…

A and B can do a work in 8 days, B and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A…

Dinesh and Rakesh are working on an Assignment, Dinesh takes 6 hours to type 32 pages on a computer, while Rakesh takes …

A can complete a piece of work in 18 days, B in 20 days and C in 30 days, B and C together start the work and forced to …

A boy and a girl together fill a cistern with water. The boy pours 4 liters of water every 3 minutes and girl pours 3 li…

A complete $$\frac{7}{{10}}$$ of a work in 15 days, then he completed the remaining work with the help of B in 4 days. I…