If 18 women or 12 men can do a Job in 7 days, in how many days can 4 men and 8 women do the same job ?
A). 6 days
B). 7 days
C). 8 days
D). 9 days
9 days
18 woman = 12 men
3 woman = 2 men
Because, 4 men + 8 women = 6 women + 8 women = 14 women
Because, 18 women can do a job in 7 days
Therefore, 14 women can do a job in 18x7/14 = 9 days