A can finish a piece of work in 4 days. B can do it in 12 days. They work together for two days and then A goes away. In how many days will B finish the work?
Choose the correct answer:  A) 4 DAYS  B) 5 DAYS  C) 6 DAYS  D) 7 DAYS  E) 8 DAYS
2/4 + (2 + x)/12 = 1 =&gt; x = 4 days   4 DAYSnswer: 4 DAYS
<result>A</result>
A can finish a piece of work in 4 days. B can do it in 12 days. They work together for two days and then A goes away. In how many days will B finish the work?