x women can complete a piece of work in 2y days. 1.5x men can complete the…

x women can complete a piece of work in 2y days.

1.5x men can complete the same work in y days, while 2x children can complete it in 3y days.

8 women, 8 children and 8 men together can complete the same work in 22.5 days.

9 men can complete the same work in y + 20 days.

Solving the shared data gives x = 12 and y = 20.

If 36 women started the work and after 4 days 30 women are replaced by 8 men, find the total time in which the work will be completed.