18 men can complete a piece of work in 30 days. In how many days can 15 men complete that piece of work? Answers:
A) 23 days  B) 36 days  C) 22 days  D) 29 days  E) 20 days
36 days   36 days   18 * 30 = 15 * x =&gt; x = 36 days
<result>B</result>
18 men can complete a piece of work in 30 days. In how many days can 15 men complete that piece of work?