8 men and 6 women can complete a work in 9 days while 6 men and 8 women can complete the same work in 12 days

8 men and 6 women can complete a work in 9 days while 6 men and 8 women can complete the same work in 12 days. In how many days 4 men and 7 women can complete the same work?

a)            16 days

b)            18 days

c)            24 days

d)            22 days

Sol: