Work

A and B can complete (2)/(3) rd of a piece of work , if A work 3 days and B work 4 days together. While they can complete (11)/(12) part of the work.if A work 3 days and B works 6 days together. In how many days A and B will complete the work seperately.

A, B and C can finish a piece of work in 12 days, 15 days and 20 days respectively. They started working together. B left the work after working 3 days and C left the work 3 days before completion of the work. In how many days work will be finished?

To complete a certain work, C working alone takes twice as long as A and B working together. A working alone takes 3 times as long as B and C working together. All the three together can complete the work in 5 days. How long would each take to complete th work individually?

A piece of work can be completed in 18 days if A and B work together, in 24 days if B and C work together and in 36 days if A and C work together. The number of days required if all the three work together is

In a company of 150 people,25 people work in technical department,55 people work in HR department and the rest work in maintenance department.Find the ratio of people working in HR department to people working in maintenance department.