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?
Pick one.
A) 4 days B) 8 days C) 12 days D) 9 days E) 3 days
2/5 + (2 + x)/10   = 1 =&gt; x   = 4 days   4 daysnswer: 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?