If 8 men or 12 women can do a piece of work in 35 days, in how many days can the same work be done by 6 men and 11 women? Choose one.
A) 10 days  B) 11 days  C) 13 days  D) 15 days  E) 21 days
8men = 12women (i.e 2men = 3women)   12women 1 day work= 1/35   soln:   6men(9women)+ 11women=20women=?   1 women 1 day work =12*35= 1/420   so, 20 women work= 20/420=1/21   ans: 21 days   ANSW21 daysR:21 days
<result>E</result>
If 8 men or 12 women can do a piece of work in 35 days, in how many days can the same work be done by 6 men and 11 women?