18 men can complete a piece of work in 20 days. In how many days can 12 men complete that piece of work?	Choose the correct choice from the following choices:
A) 23 days
B) 30 days
C) 22 days
D) 29 days
E) 20 days
30 days   30 days   18 * 20 = 12 * x =&gt; x = 30 days
<result>B</result>
18 men can complete a piece of work in 20 days. In how many days can 12 men complete that piece of work?