If 15 women or 10 men can complete a project in 55 days, in how many days will 5 women and 4 men working together complete the same project ?  Pick one:
A) 75
B) 8
C) 9
D) 85
E) None of these
15 W = 10 M   Now, 5W + 4M = 5W + 4×15/10W = 5W + 6W = = 11 W   If 15 women can complete the project in 55 days,   11 women can complete the same project in   55×15/11=75days   75nswer 75
<result>A</result>
If 15 women or 10 men can complete a project in 55 days, in how many days will 5 women and 4 men working together complete the same project ?