Question

12 men and 15 women can do a piece of work in 21 days. Find the number of days required to complete the same work by 6 men and 10 women

Answer 1

12m = 15w
m = 15/12
= 5/4
15 women can finish a work in 21 days
6m = 6*5/4
= 15/2w
so
15/2+10=35/2women con finish this work = 21*15/35/2
=18 days