10 men and 15 women together can complete a work in 4 days. It takes 100 days for one man alone to complete the same work. How many days will be required for one woman alone to complete the same work?	Choices:  A) 100 days  B) 667 days  C) 177 days  D) 187 days  E) 225 days
1 man's 1 day work = 1/100   (10 men + 15 women)'s 1 day work = 1/4   15 women's 1 day work = (1/4 - 10/100) = 3/20   1 woman's 1 day work = 1/100   1 woman alone can complete the work in 100 days.   100 daysnswer:100 days
<result>A</result>
10 men and 15 women together can complete a work in 4 days. It takes 100 days for one man alone to complete the same work. How many days will be required for one woman alone to complete the same work?