A can finish a piece of work in 5 days. B can do it in 10 days. They work together for two days and then A goes away. In how many days will B finish the work?	Choose the most appropriate option
A) 4 days	B) 6 days	C) 7 days	D) 1 days	E) 3 days
4 days   4 days   2/5 + (2 + x)/10 = 1 =&gt; x = 4 days
<result>A</result>
A can finish a piece of work in 5 days. B can do it in 10 days. They work together for two days and then A goes away. In how many days will B finish the work?