25 women can complete a work in 7 days and 10 children take 14 days to complete the work. How many days will 5 women and 10 children take to complete the work?  Choose one: A) 8 days B) 6 days C) 7 days D) 9 days E) 10 days
1 women's 1 day work = 1/175   1 child's 1 day work = 1/140   (5 women + 10 children)'s 1 day work   = (5/175 + 10/140) = 1/10   5 women and 10 children will complete the work in 10 days.   Answer: 10 days
<result>E</result>
25 women can complete a work in 7 days and 10 children take 14 days to complete the work. How many days will 5 women and 10 children take to complete the work?