If 15 men can do a work in 12 days , how many people will do the same work in 6 Days​

If 5 men can do a piece of work in 10 days and 12 women can do the same work in 15 days, the number of days required to complete the work by 5 men and 6 women is

If 5 men or 9 women can do a piece of work in 19 days. 3 men and 6 women will do the same work in how many days ?

6 men and 8 women can do a work in 10 days.Then, 3 men and 4 women can do the same work in (A) 24 days (B) 20 days (C) 12 days (D) 18 days

If 56 men can do a piece of work in 42 days. How many men will do it in 14 days?

12 men of 15 women can do a work in 40 days. 8 men and 10 women can do the work in how many days?

If 36 men can do a piece of work in 25 days, in how many days will 15 men do it?