# 10 men can finished a piece of work in 10 days, whereas it takes 12 women to finish

10 men can finished a piece of work in 10 days, whereas it takes 12 women to finish, It in 10 days. If 15 men and 6 women undertake to complete the work, how many days will they take to complete it?

(a) 2

(b) 4

(c) 5

(d) 11