12 men or 18 woman can do a work in 16 days. In how many days 12 men and 18 woman can do the work?

If 12 men or 18 women can do a work in 14 days,then in how many days will 8 men and 16 women do the same work?

The ratio of work efficiency of a man and a woman is 3:2 . A woman can do a work in 30 days. In how many can 4 men and 4 women do the work?

If 3 men or 6 women can do a piece of work in 16 days, in how many days can 12 men and 8 women do the same piece of work?

Six men and 4 women can do a piece of work in 32 days. Seven men and 12 women can do it in 18 days. In how many days can 18 men and 8 women do the same work, working together ?

Six men and 4 women can do a piece of work in 32 days. Seven men and 12 women can do it in 18 days. In how many days can 18 men and 8 women do the same work, working together ?

If 12 men or 20 women can do a work in 54 days, then in how many days can 9 men and 12 women together do the work?

36 men can do a piece of work in 12 days. In how many days 9 men can do the same work?

12 men and 15 women can do a work in 6 days, and 6 men and 12 women can do it in 10 days, in how many days can 8 men and 10 women do the same work?