A man, a woman and a boy can together complete a piece of work in 3 days. If a man alone can do it in 6 days and a boy alone in 9 days, how long will a woman take to complete the work?	Pick one:	A) 12days	B) 15days	C) 16days	D) 24days	E) 18days
Explanation:   (1 Man + 1 woman + 1 boy)’s 1day’s work = 1/3   1 man’s 1 day work = 1/6   1boy’s 1 day’s work = 1/9   (1 Man + 1 boy) ‘s 1 day’s work = 1/6 + 1/9 = 5/18   Therefore, 1 woman’s 1 day’s work = 1/3 – 5/18 = 1/18   Therefore, the woman alone can finish the work in 18 days.   Answer: Option 18days
<result>E</result>
A man, a woman and a boy can together complete a piece of work in 3 days. If a man alone can do it in 6 days and a boy alone in 9 days, how long will a woman take to complete the work?